look up any word, like jamflex:
 
1.
A drink comprised of Goon, nasty cheap cask wine and juice, most commonly orange, pineapple, mango, etc. to mask flavour.

Better than Goon, worse than Juice
"pass the guice!"

"i didn't get the ratio of my guice right! tastes like ass."
by Penny.F March 05, 2011
 
2.
The internet way of saying "guys". Also a way to sound retarded on the interweb.
"HEY GUICE WUTS UP"
by GGQ February 13, 2009