singing, dancing, yelling, crying, laughing, spazzing- can all be symptoms of a wigout in progress
"put on your wig", "wow, what a wig", "that is wiggish"
Dee dee dee deedle dee dee dee dee deedly dee!
Scott was really wigging out when the blunt was passed via monkey. Yeah, what a wigout.
Sometimes refers to a more favorable drug-induced mood change such as suddenly experiencing uncontrollable laughter, though the term "geek out" is more appropriate in this case.