If someone tells you this you should date them immediately.

trippin absolute ballsack
in blissful dimension

Like go postal, but the shooter is goin' to college. The academic, pressures, cliques, Greek life, and latent homosexuality of so many college activities drives a minority of undergraduates into the going co-ed zone. Especially where state gun laws are less restrictive and where psychological evaluations matter less, they can pack heat and now down fellow co-eds, profs if they're really pissed. See Virginia Tech.

80's Irish punk slang.
used originally to describe music/musicians
now used to describe something as very pleasing.

To perform at such a pathetic level that you are utterly and mercilessly annihilated by your opponent.

When you hear the annoyingly catchy tune of Carly Rae Jepsen's 'Call Me Maybe', and it's stuck in your head for the rest of the day/week/month/year/life.

A person who has been Jepsen-ed may experience irritability, nausea, and discomfort. Look out for sure signs of the afflicted humming the tune. If you don't run, you'll be the next victim.

Pronounced Keyed up.

High on positive energy and ready for anything, presumably because you are high as a Shaolin Monk on Kei or Chi energy because you have been practicing your Kei (or Chi), hence Key-d up.

A similar effect may also be achieved due to the use of pharmacological stimulants such as Cocaine or Amphetamines.

Etymology: Derived from G'd Up, as "I stay G'd up" (as the per the lyrics in the G-Unit song, featured on the 2003 album "Beg for Mercy") but modified instead to "I stay Kei-ed up" in order to reflect the Kei (or Chi) practice.