The act of takin ones own semen and lauching it into another persons face.
Thomas: Hey, i think we should go Sea Gullin'.

Adam: I wish I could but I just wasted my load onto your sisters face.

Thomas: What!!!
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In British schools, pre-adolence boys masturbate and then ejaculate into their cupped hand and go up to a school friend or teacher and say, "Sea gulling," as they motion their hand to hit their face with the seamen.
Teacher, "When will the sea gullin' stop?! It's been the fifth load today!"
by xiuq October 10, 2010
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In homage to king in dnb Andy C.

While DJin Drum and Bass and having sex at the same time, at point of climax pull out ya chopper and muck on both ya hands, proceed to fling it in her face, while flapping ya arms and simultaneously triple dropping The Nine and shouting Andy Andy Andy, ......andy Andy Sea-gullin
Fucking hell Brian, I Managed my first Andy sea-gullin at the after party last night!!! Been practising for years!! But it finally all dropped at the sane time! Fucking quality.
by munk i spose September 9, 2019
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