A term of faux excitement.
If used in the Uk its on Bad TV comedy shows and low standard twist on
expressions.
Most real
English people tend to used something prefixed or containing the word fuck .. i.e 'Fucking Brilliant' or 'Fuck that was good' and would have the crap
kicked out of them by their friends for using the Term 'Wehey'
I'm
the moon, and I'm gonna
eclipse ya, wehey!
(
The Mighty Boosh)
or
Janice: Where there's a will there's a way!!xxxxxx
RevHoly: Thought in your case it was .. 'Where there's a willy, Theres a Wehey'
Janice: Haha Rev u dirtbag!!