Top Definition
A fetishistic ménage à trois involving two males (one of whom is morbidly obese) and one female. Alaska threeways can be both humiliating and dangerous for the female and the slimmer male. They are most likely beyond awesome for the fat guy.

Derived from the 2010 senatorial campaign in Alaska, comprised of write-in candidate Lisa Murkowski, tea party favorite Joe Miller and goliath of a man Scott McAdams.
Will: Where's Jeff? I haven't seen him since the party lastnight.

Seth: Check the ER. I heard he got into a gnarly Alaska threeway with Katie and Ogre after everyone left.

Will: Oh gross! Poor guy, that's sick.
by Alyeska2112 November 03, 2010

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