Giggin does mean "to go stupid dumb on the dancefloor but but i talked to sources who worked with Mac dre and it when you start convulsing after poppin E tooo much and it starts to look like you're dancing.

When someone iz dancin real hard, and doin it well.

To get stupid, go dumb, dance hecka dope

refers to a person or group on the dance floor who is seriously shaking it.

dancin so hard and hecka tight while doin tha thizz face!!! and you dont care who in yo way

A dance in which you move you're body to the beat, letting yourself get loose. It often includes various dances such as "the bird" or "the thizz face".

Old School term used in Oakland, California, USA, & other major American urban areas to describe and/or denote a demonstration of a remarkably fun-to-watch, quirky, but groovy, usually solo dance performance, typically used in deference to male demonstration of such dance.