I found 2 Girls & A Cup hilarious. I laughed when they filled up the cup with poo because it reminded me of when you get ice cream at the buffet.
Look up Big Boy Carwash on Youtube it's hilarious. You need an account that is 18 years and older though.
Just because it's (somewhat) true doesn't mean it's funny. -.-; I've been to buffets more times than you can imagine, I know what the ice cream looks like when dispensed from one of those bulky machines.
I still don't see how you can laugh at that... The thought of it, yeah, but when you're actually viewing it? Who tortured you when you were 5 years old, GC? >.>;