Zoot Suit

A slang phrase that originated from Austin, Texas which refers to an imaginary suit that measures how "zooted" (high on marijuana) one is. The term is commonly used shortly after someone smokes.

"You look like you've got your zoot suit on now"
or
"I've got on my Zoot Suit up to here" (While pointing somewhere on their body to indicate how much of the suit they're wearing)