The act of leaping around your house, completely naked, masturbating and screaming at the same time. This should be performed late at night.
Sister: I woke up to hear screaming last night, turns out my brother was just doing The Screaming Gazelle.
Friend: EWWWWWWWW
Friend: EWWWWWWWW
by Threshold April 26, 2011
Get the The Screaming Gazellemug.