Racial slur. A person who likes to perform fellatio on black men.
Tito's got him a mudsucker, every time the girl sees him she sticks his dick in her mouth like a baby with a pacifier.
by SheilaPrince July 13, 2009
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Someone who goes down on a black girl. To put your tongue in and around a black girls vagina.
Did you hear about Isiah going down on a black girl. WHAT! I didn't know he was a mudsucker.
by 70camaro209 January 14, 2010
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A person that has agreed to go to an event, but every time they open their mouth there is an excuse as to why they are late and never end up making it.

The saying seems to have started in Santa Barbara during a bachelors party weekend, the longjaw mudsucker is typical from the area.
I just called Marin to see why he was late, but all I heard was excuses as to why he was late. I don't think he's going to make it, he is such a longjaw mudsucker.
by SpekTro April 6, 2015
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