In "Dog Hand", Raven calls her dad a 'wiener'. Keep in mind what wiener is another word for.
Raven: You have no idea how big of a wiener my dad can be.
In "Double Trouble", at the clone party, a Beast Boy clone can be seen humping a Cyborg clone.
A group of the clones also play "spin the bottle"
In "The Date", there is a broom labeled 'lady' with two watermelons for breasts.
From the same episode:
Cyborg: And my fortune is "You and Starfire will have seven kids!" What!? Beast Boy: That's gonna be awkward since I'm already marrying her. note The fortune device they were using was designed by Robin for Robin
Also at the beginning of the episode, the way Beast Boy looks conspicuously at Robin in his room might suggest he believes Robin is masturbating.
In "Laundry Day", Robin spends almost the entire episode naked, with fangirls snapping pictures of him.
Who better than Gizmo to be the villain Robin thwarts with only the power of his awkward nudity?
In "La Larva Amor", a dog-shaped piņata's butt is smashed open and candy spews out of it...and that piņata looks like Krypto.
While searching for Silkie in Starfire's room, Robin finds her diary and discreetly stashes it down the front of his pants. He even drools at the sight of it.
Silkie's 'girlfriend' shows a lot of cleavage (though not surprisingly, the view of of her cleavage is usually blocked by either her hands (she's very emotive) or Silkie, so this isn't as prominent as you'd expect). He even gets some Marshmallow Hell for his trouble.
She also mentions that her ex-boyfriend used to call her mother a donkey. Another word for donkey is also a word for a certain body part.
Her swimsuit is apparently pretty tight around her chestnote the suit isn't completely contoured to her body, like you'd expect in a cartoon like this.
"Hey Pizza" had a lot of moments with Robin wanting to see Starfire in her bikini. Especially when it involved him thinking about applying sun tan lotion on her, which caused something else to rise...
And another Beast Boy stoner joke - when he and Cyborg think they might have killed the pizza guy, they immediately panic about being sent to jail. Beast Boy's response is rather... suspicious.
B.B: "Aah! I gotta go hide some stuff in my room!"
"Super Robin" literally got crap past the radar. Cyborg complains about his car getting covered in bird poop and bird!Robin admits to doing it himself.
Earlier, when Robin was fighting Mammoth, it looks like Robin's humping his face at one point.
In "Tower Power", the Titans are cleaning Cyborg's body parts. Starfire is cleaning his butt when nuts and bolts start flowing out of it. If that were real poop, it would've never got past the censors.
There's also the part where Robin was in the shower. He was covered in bubbles, though.
In "Parasite", Robin has sexy pictures of himself on his computer.
"Gorilla" has this with with a closed-captioning error. Cyborg, while training Robin, at one point says "Now take that kitty cat's dinner!", but the captioning mistakes this with "Now take that kick-ass dinner!" Considering Warner themselves subbed this, is this an example of Mondegreen, or a bored intern?
In "Starliar" a flashback shows Cyborg chugging an entire bowl of punch, then puking.
Same episode; Robin attempts to grind with Aqualad, but the Atlantean is having none of that.
In "Meatball Party" the Titans barge in on Raven while she's taking a bath. They even get in the bathtub with her.
"Staff Meeting": during a fight with Doctor Light, Robin's already broken staff goes limp. Doctor Light stops fighting to take the time to laugh even while Robin foolishly fails to hit him.
Cyborg and Beast Boy "trying to capture" Pink Raven is visually reminiscent of your average drug trip, with rainbows and flying unicorns and ridiculous amounts of food...with faces. Plus their incredible disappointment when it "wears off". They even "wake up" in a dingy back-alley somewhere.
Grey Raven spends a great deal of time vomiting.
In "Books", during the Art Shift where the Titans are drawn like their comic counterparts, Starfire is wearing her Absolute Cleavage costume.
After the Titans read all the books Raven has on hand and she refuses to get more for them, they start going into withdrawal. Robin even says, "You can't get us started on books and then cut us off!"
When the Titans have finished their books, they ask Raven for more. She suggests that they borrow each other books, and Cyborg says "You are nasty, girl! That is just gross!" as if it was something hygienic.
In "Burger vs. Burrito", Cyborg and Beast Boy are busy cooking their respective foods. One scene has Cyborg punching a bowl of beef repeatedly with the words "food pun" on his apron. In other words, he's beating his meat.