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1.
to be on a urge to attack
When most people get frustrated they become aggressive
by Gerard Irick July 27, 2009
 
2.
1. characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
2. making an all-out effort to win or succeed; competitive: an aggressive basketball player.
3. vigorously energetic, especially in the use of initiative and forcefulness: an aggressive salesperson.
4. boldly assertive and forward; pushy: an aggressive driver.
5. emphasizing maximum growth and capital gains over quality, security, and income: an aggressive mutual fund.
I didn't even do anything. she just started yelling at me. she's just very aggressive.
by Marco Shammy January 09, 2014
 
3.
Awesome, Dope
"Man that new Lamborghini is aggressive!"
by wilson_life January 15, 2013
 
4.
Subgroup of urban black lesbian that dresses and acts like a man, but still identifies as a woman; Has been known to turn cute heterosexual black girls gay for a period of time, though in some rare cases, they remain homosexual.
Person 1: Look at that girl! That is one hot ass!
Person 2: Naw man. She's with that aggressive.
Person 1: Oh damn, nevermind.

EXAMPLE 2

Get that thug aggressive outta here!
by octogirlpretty January 26, 2010
 
5.
A crazy blonde girl who constantly tells you how many times she throws up. When drunk this girl will scream and yell and tell you how she will "f*ck your life up". She makes pizzas appear out of thin air. She only goes to bed when she is done pissing everyone off and is shoved into her room. May leave voice mails of her crying rants to her boyfriend at two in the morning. Did I mention multiple voice mails? Belongs to EHarmony and enjoys girls named heather and meghan.
TayCraw your being to aggressive tonight when your yelling at phil!
by MBBD September 21, 2011
 
6.
the dominant female in a lesbian relationship (usually the girl who dresses and acts like a thuggish male)
Kisha is mos def an aggressive, the way she be handlin that ball on the court"
by Mil1Yon September 13, 2003