A muck ring is the ring of shit that forms around a penis during anal sex. A Felcher is one who felches. Therefore an MRLF is someone that felches and licks the muck ring off of penises
The act of repeating the funniest part of a joke or movie quote to your friends after they have all laughed at it, causing more laughter among the group.
Jeff: "dude that joke Chad told was hilarious."
Greg: "oh yea we were punch lining that one all night, it never gets old."
Spite liking (verb): Liking another's Facebook status motivated by facetious ness or jealousy. More subtle than disparaging comments, the spite like is meant to unnerve or irritate the original poster.
"Man that nigga posting shit like he happy, I licked him for QP and started spite liking his shit."