The process of sucking sperm with one's lips, from another man's anus after ejaculating inside.
Jase says to Benny " Let me give you a Swainy, cutie".
by Trenta June 2, 2008
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A Swainie is an uncommon version of the emo, and mixed also with a stoner. a Swainie or Swainson prefers to be socialising in small group of 3-9, You tend to only get few swainie's inside one city, or freindship group.
Joe: "Ah, he's a right Swainie Sitting there on his own smoking Grotbangers!"
by Dangerfield. September 28, 2009
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Just a great, cheeky guy.
Hey Swainy.
by Pete616 November 25, 2014
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