1 definition by Mr. Balonium
The act of having 4 orgasms in the four "glandular" zones of a woman all in one session. Namely. Vagina, Bum, mouth and tits.
Man. That bitch was so hot. By midnight I'd hit a Gland Slam and was headed for home. No extra innings!
by Mr. Balonium October 25, 2010