Top Definition
1) First used in Cross Country meaning Suck A Mean Dick. . .

2) Used in conversation to get a girl to go away. Often associated with a commanding tone.

3) The A can be substituted for the letter of a guy or girl's name. This is used to invite a girl or guy to hook up.
1) Oh go S A Mean D!

2) You dumbass, go s a mean d.

3) S N(ick's) Mean D
by Jen June 27, 2004

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