1. v. to suck and/or blow using the mouth
2. v. to suck, be terrible at something
3. n. a loser or sucker
1. Jenny vacked me last night!
2. You vack at this!
3. you VACKER! or you VACKUH!!!
to be cool...or awesome...a substitute for cool or awesome
johhnys party was soo vack!
That is the Vackest thing ive ever seen