An alternate way of spelling the the word muscles. Used most commonly by those of the Jewish denomination with much phlegm involved or by someone who is in a fit of rage.
Thomas: Aw man i wish i had a body like Barack.
Enja: YA HE HAS SUCH HUGE MUSSELZUH
1)A good man, who doesn't always act his age, but is still loved anyway. Not everyone gets his jokes, but he can always make someone smile, whether because of his comedy, or because of the fact that he cares so much.
2) All of the first definition, plus being a member (or the leader) of a War of 1812 reenactment group.
1) That Musselwhite...I don't get his jokes all the time, but he sure knows how to make me smile. :)
2) Hey, you know our reenacting Sergeant is a Musselwhite, right?