Baseball slang used for when someone hits a homerun. Often when used you say "haha" in a higher pitch tone so it's emphasized.
Man, I took that ball yalayhaha.
Dang, he went yalayhaha on that guy.
by tcallaway January 27, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×