fellaysh
Used in the upcoming movie Superbad and coined by the character Seth (Jonah Hill). It slang for fellatio.
Yeah, well when you guys are at Dartmith, I'll be over at State where the girls are half as smart and twice as likely to fellaysh me.
fellaysh to compleesh
When you give him head until ejaculation.
"Did you give him head then have sex?"
"No I gave him fellaysh to compleesh."
"No I gave him fellaysh to compleesh."