A command told to a female with unattractive un-bra'd breasts.
The definition originates from the movie Knocked Up, where our actress is seen having intercourse with a bra on.
My ex-girlfriend's tits were so nasty without a bra on I told her to Katherine Heigl that shit.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.