1 definition by Deacon Bluez

1

A McDonald's McChicken sandwich with an extreme amount of mayonnaise.

I'll have a Big Mac, a large fry, and a McCumdump.

by Deacon Bluez February 07, 2021

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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request