Typically a girl from Essex that has travelled on her Gap Year to Thailand and been "dogged" in the sea, hence the coined term SeaDog, Get your cunting dog in the sea and get her to show you her twat in the moon light
Seadog, sea doggin, doggy in the sea. dangerous unless done in a warm climate, for example this would not be great on Brighton Beach unless you had a screw loose!
by OxfordBoy April 23, 2006
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When a man has his dick inserted in a girl when is isn't hard.
Man1: Dude this morning when i woke up after the party i was giving some fat chick a floppy seadog

Man2: Ah gross.
by Worlds Best BMXer March 12, 2010
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A form of an orgy in which a guy and girl have bareback sex on a boat, after which another man then has sex with the same girl causing the other man's semen to curdle.
Jim: Hey Tod whudda you say me, you and your girlfriend do a curdled seadog friday night.
Tod: Why are you always trying to have sex with my girlfriend man?

Damn bro dat bitch be a curdled seadog
by P0JI December 20, 2011
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A group organization that are dedicated to save dogs in the sea. They usually appear in Summoner's Rift.
Why do they have three Seadogs on the enemy team? It is for the best that we surrender.
by Seadog3751 September 16, 2020
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SeaDog#4202 is a discord user that has a 9 inch dick. He swims in pussy daily even though he looks like a lesbian. He is the best metal guitarist out there. Fuck zerin, he tried to kill the SeaDog, but he was too powerful. His religion is copper muliska. Baddass I know. If you see him, feel free to give him your virginity, trust me, YOU want it. Remember, he is always watching.
SeaDog looks like a lesbian so I’m going to give my virginity to him
by The mighty SeaDog November 17, 2020
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A group organization that is dedicated to save dogs in the sea. They usually appear in Summoner's Rift, with code name 3751 being their leader.
Why do they have three Seadog(3751)s on the enemy team? It is better that we surrender.
by Seadog3751 September 16, 2020
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