These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Gene: So, This is what they sound like when they have sex in the room next to mine. Gene's Cordio: Ow, Ow (fart noise), Ow, Ow, Ow Ow, Ow, What? Teacher: Principal's Office Now! Gene's Cordio:Ow, Ow, Ow, Ow, Ow, Right (Fart noise).
Ho Yay: Mr. Fischoeder and Bob had a few moments in the "Burger Wars" episode (like when he asked if he could touch Bob's mustache. He looks really pleased).
Gene seems to fancy Jimmy Jr. along with Tina though that could just be played for laughs.
No Such Thing As Bad Publicity: Uttered by Linda upon the many more customers they were receiving thanks to Moo-Lissa the cow standing outside next to the restaurant, who was due to be slaughtered by a documentarian.
The fact that she is voiced by a man does not help, although she does have breasts and has tried to sneak into the mens locker room Via the celing.
FYI, Tina was actually originally meant to be a boy, and this went on late into development until it was decided the character would be female. This could possibly explain the voice and generally male mannerisms.