When the penis is aroused and expands to it's full length
Kiersten : Mmmmmmmm! Mmmmmmmm!
Chad : Mmmmmmmmm! Mmmmmmmm!
Kiersten : I do love kissing you Chad and it makes you get A Hard On would you like a blowjob?
Chad : Yes Please!
Chad : Ahhhhhhhhhhhhhhhhhh! Ahhhhhhhhhhhhhhhhh! Ahhhhhhhhhhhhhhhh!
Chad : You know this reminds me of the other day when me and Jim were kissing we got Hard On's and took turns sucking each other's dicks!
Kiersten : Reallly I just gave you an amazing blowjob and your going to talk about your gay experience with Jim.
Chad : I'm not gay I'm bicurious!
Kiersten : Well sounds like your gay to me!
Chad : I gotta go Jim want's me to take A shower with him!
Kiersten : GAY!
Chad: Bicurious!
by SlopNChop March 7, 2017
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1. Hard (n) ghetto slang for crack cocaine

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2. Hard (adj). Gangster slang for Awesome, cool, amazing. Also "to go hard"
1.Ex: "Wayne does smoke hard sometimes when times get tough"

2.Ex " yo darion this beat you sent me is hard!as fuck(sup.)

Or " yo darion this beat go hard!as fuck(sup.)
by Dang8701 April 16, 2016
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-absolutely not
-fuck no, fuck that
-you're irrelevant, you just suck
-Gross, ugly, awful, terrible
-Aggressive
"Emily the morning after a night out is a hard no."
"That guy over there is a hard no."
"The way Kaela dances is a hard no."
"Pouring an entire bottle of Zelko vodka on someone's head is a hard no."
"That outfit looks like shit- it's a hard no."
by Darealxtina July 12, 2014
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An erect penis.
see also boner,stiffy etc.
'When Bob saw Jenny by the pool in her bikini he got a big Hard-On'
'When my dog licks my balls i get a Hard-On'
by Disturbed1 November 23, 2003
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Man's most magnificently majestic manifestation of masculinity, and the one potentially most exciting to a woman. It looks like a rocket ready to be launched, and has the same turbulent thrusting force and energy.
It signals to a woman that a guy is ready and able to have sex with her and eager to do so, which, if she finds him attractive, tends to kindle her interest. For that reason, it is a serious though common mistake for a guy to be embarrassed or self-conscious when he has an erection.
Freshman year, after pulling an all-nighter, I stripped and got in bed, only to wake a half hour later with an urgent need to piss. I got up without waking enough to know I was naked, much less that I had wood, and walked down the hall to the bathroom. Only as I walked past the open door of another room down the hall and saw a woman grad student staring at me with wide eyes did I look down and see I was sporting the most giant hard-on I'd ever seen in my life. Afterwards, she kidded a male grad student we were both friends with that I had a better body than he did. He replied, "You've seen more of it than I have."
by Adam Phillips August 19, 2006
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