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3.
Drill is part of the military, they do a lot of sharp walking with rifles, flags or just like that, so Drilly is when you wake up in the morning and that you feel like you need to drill, not especially because you like it, but it is because you are too use to it. You also feel drilly when you wake up in the morning and you have dreamed about drill during your night.
-Oh, I feel drilly this morning!
-Let's form up guys it's gonna be an hard day...
by Miss_Sergent December 12, 2010
 
1.
Slang for Benadryl when used recreationally. A play off of the slang term "dillies" used in reference to Dilaudid.
"I dropped like 20 drillies last night and didn't know where the fuck I was."
by Archmage Spilner November 23, 2012
 
2.
to have sex/intercoarce/make love that is meaningless
lets go pull drillies baby?
by kirt July 20, 2003