look up any word, like blumpkin:
 
1.
The upward stroke when conducting (in music), the upbeat.

The name of an American technical death metal band that has released 3 studio albums and one EP, the latest album having been released just this year entitled We Are The Nightmare. Arsis doesn't seem to be very well-known but they are a very skilled group of musicians with unique style and strong vocals.
A: Hey dude have you heard of Arsis?
B: No.
A: Aw man they're really good. Listen to "Sadistic Motives Behind Bereavement," "We Are The Nightmare," "Dust And Guilt," "Carnal Ways To Recreate The Heart," "Overthrown," and "A Diamond For Disease."
by darkesideofthepaul July 01, 2008
 
2.
a type of fat that is stored in your stomach
to keep you warm
Boy: oh my god my stomach is large..ihave too much arsi in me, i need liposuction
Boy 2: we carnt afford liposuction.. we need to get weed first mon
by KylieStripTeaser December 31, 2008