A term which refers to anthropomorphized humans engaging in sexual frottage, but only when one or both parties are marine animals.

(Marine form of Yiffing)
"Hey man did you see that cute dolphin chick at the con last night?" "Yeah?" "We totally glissed it was so hot." "Dude! I wish I could lock down that porpoise - I've always wanted to try glissing"
by vitriola October 30, 2015
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Short for glissando, to "slide" from one note to another covering all the notes in between. Can be used as a noun (the run of notes produced by sliding from one note to another) or verb (to perform the action of sliding from one note to another).
It's easy to gliss when you're playing lap steel guitar.
by Go4baroque1969 October 24, 2006
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a term referring to expensive jewelry/ice
"Got you lookin at the gliss at my hands and wrists"
--Twista "Slow Jams"
by ELiz Lea September 2, 2005
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A small, shining spot of pre-cum, glistening on a female lover's lips - like a bit of stray lip gloss.
As she pulled her mouth away from my pre-ejaculate member, I noticed a small dab of gliss on her already moistened lips
by Loo Sniffer August 3, 2008
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the gratest saftey word that was ever made. A substitute for almost any swear.
Oh, gliss off! You gliss-face. Shut the Gliss up
by Mario-mix March 4, 2008
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Don't be such a gliss-face. Go gliss off.
by Mario-mix March 4, 2008
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