The most beautiful and savage beverage to ever be produced by anyone ever. The best variety is the Original, preferably in the BFC, with chaser flavors of Chaos, Assault, Mixxd, M-80, and the vagina flavor: lo carb. It is also known as Green Crack, Liquid Marajuana, and Zues' Meth.
A - Hey man, wheres your Monster?
B- I dont drink that shit anymore, man... havent you read the other definitions on UD? That shits for posers and emos, yo
A- *With a Monster-induced Sternum Strike that goes through B's chest* YOU LYING NAZI UNPATRIOTIC LOSER FATHER FUCKING CUM GUZZLER!!
B- *Now on the ground, bleeding to death* But I...
A- *Curbstops B* SHUT THE FUCK UP, YOU CUNT BUCKET!
A- Monster Energy Drink. Unleach the beast.
Synonym for average. Derives from 5.9 inches being the average penis length in human males. It is pronounced without the decimal point. ("Five-Nine")
Yo man, how was transformers 2?
Ehh. it was pretty 5.9
Yeah.. but you got to see Megan Fox panties shot, so its so worth it