How about attempting to associate each one with a different form of flatulence?
= I farted. It felt good.
= Is this a fart or something more?
= That was more than a fart. And it hurt.
= That was a nasty fart. And I'm stuck on this elevator for twenty more floors.
= Farts after Mexican food or Indian curries really burn.
= I totally got away with blaming that fart on the dog.
= The devil has entered my bowels. I can smell the brimstone in my farts.
= I'm so drunk I don't care if this fart is extra moist.
= I'm gonna sneak into my friend's room and fart on his head to wake him up.
= I just farted on my friend's head.
= My friend just farted on my head.
(Alt.) = Here I sit, broken-hearted--Paid a dime and only farted.
= I could taste that fart. Ew.
= Farting is so not funny. How childish.
= Dude! That fart was most exellently rank!
= Farting is cool!
= Farting is nasty!