Full Shatner

When you're dancing totally normal, and you hear a song that gets your mojo movin'...so you bust some sick, over-exaggerated dance moves (example: flailing arms, throwing yourself around the room, etc)

"Holy fuck, did you see Joey on the dance floor last night at that bat mitzvah? He went Full Shatner! I've never seen him cut rug like that. Bitch can bust a move."