Meta McMucil. Because using nicknames doesn't promote one's cause.

McAin't...yes he can yes, he can, can, no he cain't.
McBomb...McOne, two, three what are we fighting for?
McBore......
McCan't...McCaint, it's all the McSame.
McCrabby...&#*!
McCrustypants...that's a popular pun I couldn't leave out.
McDone.
McDumb....dumb and dumber.
McFlip...McFlop.
McInsane...who are his supporters?
McNasty...they called him McNasty.
McSame...apply the insanity definition, rinse, repeat.  ¶ 9:16 AM