A visual gimmick used in film and on stage where a person is surprised or taken aback by another's actions or words while drinking, and spits or sputters that liquid.
"He did a spit take when she told him she was pregnant."
A kind of "sixth sense" that allows a flamboyantly homosexual man, or masculine homosexual woman, to play up their macho/feminine side upon entering a "gay-unfriendly" area.
Les's gaydar detector was going crazy when she drove to Laramie.