Where a girl beats your penis back and forth to give you an orgasm. It is somewhat similar to a handjob.
by jack6374 June 3, 2009

by xXxenophobe February 25, 2009

by Jack December 6, 2004

Used to depict awesomeness or ugliness depending on the context.
cool awesome fresh dope amazing bad ugly whack unattractive attracive
cool awesome fresh dope amazing bad ugly whack unattractive attracive
Man, that girl is so fine and her boobs are shaddy whack
or
Eww, that girl's saggy boobies are shaddy whack
or
Eww, that girl's saggy boobies are shaddy whack
by Tai Thompson February 15, 2008

pronounced (wak-um): a lubricant, usually lotion, used to ease the process of furious masturbation in men
by Cootie Brown December 14, 2008

by j1stoop December 9, 2008

The bomb diggity, the most awesome, Extremely good (Sick) yet different (Whack). Extremely favourable circumstances.
T "I saw a fully pimped ride yesterday"
K "Sickety Whack"
K "The maths exam has been canceled"
T "Sickety Whack!"
K "Sickety Whack"
K "The maths exam has been canceled"
T "Sickety Whack!"
by Scotty2127 December 14, 2008
