look up any word, like the eiffel tower:
 
1.
a person of dutch descent.
man that dude is so corny, he's gotta be a yonky.
by neb sicnarf January 21, 2008
 
2.
Unstable, unsafe. Questionable.
little_gray is acting yonky today.

or nerdy:
that css hack looks a bit yonky...
by schjetne February 27, 2004
 
3.
a delicious potatoe treat, usually served at itatlian restruants with tamatoe sauce
gnokies = yonkies
by yonkie lover January 24, 2010
 
4.
When Yorky gives you a blow job and spits the cock snot back at you.
Tim got very messy after receiving a Yonky
by Abraham Blompie May 08, 2005