A standard sitcom plot in which the (Always Male) main character's boss comes to their home for dinner. Naturally, they'll panic when they learn of it and nervously prepare throughout the episode. Expect hilarity to ensue when the boss finally comes.
This is a very common trope in sitcoms, particularly animated ones. It's something of a Discredited Trope, though, perhaps due to the fact that it has become increasingly rare in Real Life.
Monica's Gang: Maggy's Dad's boss once had dinner with her family and she was told to control herself. Easier said than done. Maggy's Dad was afraid he'd be punished but instead his boss gave him a raise so he'd be able to support her.
In Dilbert, Dilbert was once randomly chosen to have lunch with one of his company's executives. Dilbert took the opportunity to criticize the executive after the executive asked him to be honest (though he was really just fishing for compliments). He angrily started a Food Fight by flinging au gratin potatoes at Dilbert. Dilbert countered with an ear of corn in his hand unintentionally killing the guy when the corn knocked him out and he drowned in his soup.
The Judy Blume novel Tales of a Fourth Grade Nothing has this, only rather than the boss, it's a client at an advertising agency. The defiant kid brother, Fudge, causes trouble when the client visits, and it's implied that the agency lost the account because of this. The connection is made more direct in the TV adaptation, Superfudge.
In Harry Potter and the Chamber of Secrets, Mr. Dursley's potential client and his wife come over to discuss a promotion over dinner. When Harry retires to his bedroom, Dobby the house elf appears and begs Harry not to return to Hogwarts. When he refuses, the house elf levitates a cake over the boss's wife's head and drops it.
The Paul Jennings short story "Licked" (which became the basis for part of the Round the Twist episode "Little Black Balls") has this as its plotline. This time around, our narrator is the son, who is going out of his way to disgust everybody.
Heil Honey, I'm Home!, the infamous sitcom which had Adolf Hitler and Eve Braun as the main characters (seriously) used a similar set up in its opening episode. The person coming to dinner was Neville Chamberlain rather than a boss, but it's treated exactly the same way.
Happens twice in Happy Endings, both with Jane's boss, the Car Czar. The first time, she invites him and her other male coworkers over to try and win them over, the second time, Brad foolishly invites the Car Czar over to dinner even though Jane has planned a double date for them with Penny and a new guy. The first time, it goes fairly well, the second time...not so much.
Happens on Family Matters when Harriet's boss Nick is invited to play poker with Carl and his friends.
Actually happens several other times throughout the series. Most straightforwardly, when Carl throws a dinner party for his boss, which is thwarted when Urkel's exploding pepper is accidentally used on the roast chicken.
Inverted on Friends - Chandler's boss has him and Monica over to his home for dinner.
My Family imported Susan's clueless American boss - who stayed the night and then died in the Harper couple's bed.
Done of course on Dinosaurs. In 'Power Erupts', WESAYSO exec, Earl's boss Mr. Richfield invites the Sinclaire family to dinner at a fancy restaurant in order to convince Robbie to sell his volcano-powered generator designs...after WESAYSO has discredited the idea with some mass-media mudslinging.
When Earl was made Employee Of The Month, Mr. Richfield said he'd invite Earl and his family to dinner at his place but, since he was doing some alterations in the bathroom (or so he said), he invited himself to diner at Earl's place. With an overinflated ego, Earl had his family ready for this and even invited his mother-in-law to rub it in her face. Richfield didn't show up.
Happened on Hi Honey, I'm Home!, Nick-at-Nite's short-lived sitcom that parodied classic shows and tropes. The boss turns out to be Mr. Mooney from The Lucy Show, played by Gale Gordon.
Get Smart had some fun with this, as it aired during the height of the Women's Lib movement and all:
99: Max, did you say The Chief? You invited your boss for dinner tonight?!
Max: What do you mean, my boss? He's your boss, too.
The Simpsons: Mr. Burns does this in "One Fish, Two Fish, Blowfish, Blue Fish" as part of his political campaign.
Also parodied in "The Simpsons Spinoff Showcase", where the family consists of beavers and the boss is a skunk (played by Tim Conway).
In the episode "Twenty-Two Short Films About Springfield," there's a segment about Principal Skinner having Superintendent Chalmers over for dinner.
One more Simpsons example: In "Behind the Laughter", this was the plot of the pilot Homer shot. Bart played the boss.
Mr. Spacely does this in the pilot episode of The Jetsons.
Family Guy: Peter invites Mr. Weed, the owner of the toy company he works at, over for dinner. Weed chokes on a dinner roll (catapulted from Brian's mouth after Brian chokes & Peter gives him the Heimlich maneuver) and dies.
American Dad!: Deputy Director Bullock goes to dinner at Stan's house or stays over on several occasions. President Bush even goes over for dinner one time due to Stan winning an essay after the agent that won plagarizing some of his essay.
Done on an episode of Rocko's Modern Life, but not with any of the main characters. Instead, it played out with parasites living on Spunky, whose lives spoofed old sitcoms.
Kim Possible's father has the board of directors of his lab over for dinner in one episode... right after Kim is hit by a Truth Ray that causes her to blurt out all the unflattering things her dad says about them (one has a bad hairpiece, one is a crashing bore, and one is an annoying know-it-all). Kim's dad is clearly in hot water with his bosses, until the board chairwoman arrives and turns out to be the Kidnapped Scientist Kim had rescued at the beginning of the episode.