Top Definition Urban Dictionnary:
yikes
a term used to show shock or extreme surprise.
Yikes! That sure scared me!
by Kim (Matt's Girlfriend) August 16, 2003
yikes
used instead of **** or in a manner that denotes a slight disgust.
1."i almost got fired today.."
"yikes"
2.(girl walkes by with really tight, ugly pants)
"yikes"
by jilldo December 28, 2003