Top Definition
Something you call a family that's more than a best friend because that's fam, She's me Besto
Hey Besto !!
by Mrs. Stephen October 18, 2011

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where you insert your ballsack into another persons anas while getting sucked off
alex had a besto with rebecca and claire last night , what a lad
by emmet171717 December 29, 2010

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The best person of all time. Always makes you happy and looks amazing. Always makes you happy and you always want to be with them.
Amie is besto.
by Bman18 October 23, 2016

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