Jailbait

Any situation which tempts a person to do something really stupid, and will likely land them in jail, hence the term. Examples include attractive underage women, an unlocked car with the keys left in the ignition, that rack of discount books that sits OUTSIDE of Hastings instead of INSIDE, etc.

See that Chevy over there? The red one? It's unlocked. I think I see the keys in the ignition, too. You should go check it out, man.

...

Yes, he took the jailbait! *dials 911*

NyQuilshuffling

Akin to robotripping, NyQuilshuffling is the abuse of the cold medicine NyQuil in order to become intoxicated. Vaguely described in the song by They Might Be Giants, AKA Driver.

John: Dude, is Bob over there Robotripping?
Steve: No, he's NyQuilshuffling. You should probably confiscate his car keys.

spam porpoise

Yet another euphemism for a penis, coined by Andrew Hussie of MS Paint Adventures. Generally used to add an element of variety to a conversation centering around the male genitalia.

1: Hey, how was your date last night?
2: Rough, my spam porpoise is aching...

or

1: blahblahblah dicks blahblahblah
2: blahblah Johnsons blahblahblah
3: Hey, what are you guys talking about?
1 & 2: Spam porpoise.

plant

Easily the best kingdom on Earth.

When humans fail God, the plants will take over.

flammable beverage

It means booze.

Hey guys, I'm gonna go get a flammable beverage, anybody else want one?

kk

A lazy way of saying "OK". Try not to hang on that second K, or you may get shot.

A: Dude, I'm gonna go take a piss, be right back.
B: kkk
A: *slap!* The O's right fucking next to the K!!!

Sneezure

To sneeze several times uncontrollably, as though having a seizure.

My brother who has allergies woke me this morning when he was having one of his sneezures.