From a song.
1) Used as a funny way of saying argh.
2) Used as a comeback to do with getting a boner.
3) Used whenever you want.
1) P1: "You left your bag on the bus."
P2: "Argh that makes me hard!"

2) P1: "Yo did you see how the wind lifted up that chicks skirt!?"
P2: "Yessssss shes HOT!"
P1: "Argh that makes me hard!"

3) P1: "Hmmm I'm really bored..."
P2: "Argh that makes me hard!"
by dkjbds August 26, 2008
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“That makes my butt hard” (“making my butt hard-verb version) is an expression that can have slightly different meanings depending on the circumstance, but generally the expression is used in a positive manner. This positive expression can be used in the following ways (however not limited to what is listed):

1) Used to agree with someone.

2) Used to express attraction towards someone else.

3) Can be used to convey a general liking of something, some place, or someone.
Examples:
• These bean and cheese tacos are “making my butt hard”!
•Dude, tone it down with the cologne! You’re “making my butt hard”.
•Girl, You makes my butt hard ….no no…that’s a good thing. No…I’m not into anal play… I guess I was trying to say that you give me an erection, but didn’t want to come across as an agro alpha male.
by $wen$on August 21, 2021
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