look up any word, like blumpkin:
 
1.
Your fat doppelgänger; a fat look-alike. Derived from "doppel" being German for "double" and fatties frequenting McDonald's, likely ordering McDoubles.
A: Oooh, that girl looks like Rebecca Romijn plus 50 lbs.

B: Must be her McDoppelganger.
by chuntheman2001 July 29, 2013