Biscuit is is a slang for a gun

and by droping the Biscuit you put or drop your gun down.
In Eminem"s song Guity Conscience ft dr.dre

dr.dre tries to stop the character"Eddie" from robing a liquor store he goes:

"Man don't do it, it's not worth it to risk it (You're right!)
Not over this shit, drop the biscuit (I will!)"
by Doc.Q March 27, 2014
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phrase
1. The act of letting someone down.
2. Actually dropping a biscuit.
"Man, you always drop the biscuit. What's going on?"
by bobbyDROP_tables May 8, 2008
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Refers to when a man or women tells someone a horrible piece of news, then follows by saying something extremely positive.
Bill: *walks into room*

Jill: Oh hey!

Bill: You know Michael Jackson just died.

Jill: Oh my! That was quite a way to start dropping the biscuit!

Bill: Wow! that lipstick rules!
by Tifonbarniy July 1, 2009
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Taking multiple shits throughout the day.
Where is Carl? He’s always away from his desk. The dude is always dropping biscuits.

This new diet has me dropping biscuits.

Thanksgiving dinner is great but there will be a line for family to start dropping biscuits within the hour.
by Eaton Holgoode November 15, 2017
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The most annoying of all farts. It is not as deadly and destructive as the dread cheese, egg or dog farts. However, the drop biscuit fart lingers a lot longer than the aforementioned farts. It's as if this fart is baking in the over just flicking you in the nose with its' annoying odor. You may or may not see a pale brown cloud emanate from the farter's ass after a drop biscuit fart.
Christ almighty, that goddamned Benson, he started off the road trip by launching a drop biscuit fart in the jeep and put the power lock on the windows. That friggin' fart rode the whole 2 hour trip upstate with us!
by Furiosa the Accursed February 23, 2017
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