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A bagel bumper is a slang term for lesbian, as associated with food and the act of bumping two bagels together (two holes with no success of penetration) Compared to lesbians trying to make love with the impropper "tools of the trade".
Wow, look at those two dykes, i bet they are bagel bumpers. Yeah they bump eachothers bagels all the time.
by JohnF November 27, 2003