To over-react with physical movement while performing normal tasks- much like the acting styles of one William Shatner.
Did you see Paul break the lamp and knock over that table while he was picking up that towel off the ground?
yeah, he totally Shatnered that one.
overact; to act in a manner that is incredibly over the top, overexuberantly, unnecessarily exaggerative,
The actors in the live action Speed Racer movie completely Shatnered their parts.
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."
A sex act where the male defecates on the womans chest, then proceeds to jack off furiously at the sordid display while making a classic William Shatner expression and finishing the act by giving her a Pearl Necklace.
Oh fuck dude, last night was crazy! This dirty bitch asked begged me to give her The Shatner. How could I resist!
An acknowledgement of whoever or whatever shat in her pants.
INXS: "Shatner Pants, Shatner Pants! Every Single One Of Us Shatner Pants!"
Mixing Valium with a shot of alcohol for the express purpose of helping you pass out when you have to travel by airplane and are afraid of flying.
"I hate flying, but I need to take a New York to L.A. flight."
"No problem, man. Just take a Shatner Shot before you board. You'll sleep through the whole thing."