Not a gag, but I really like how nibbler was set up right from the pilot.

I'm pretty sure this gag is from when Fry joins the police, but it always cracks me up.

The same episode he also mentions having a lot of paperless work to do. Not a background gag but a great line nonetheless.

Gotta be the gym scene where the woman is working out on the "Kegelcizer" and just squinting

I love the radiator woman from the radiator planet attending Fry's funeral.

Omg I don't have one or I don't remember. Thank You for giving me a reason to rewatch n-time this masterpiece with this side quest!

10 HOME

20 SWEET

30 GOTO 10

Definitely when Bender eats one fat free potato chip and a pile of bricks fall out his ass. Fry never comments on it.

Olestra was a fat-free "oil" manufacturers were using in potato chips, and there was a bunch of press about it causing diarrhea.