Penny dropping 

Verb- To fail at life. Usually used when a person fails at a day to day task or in mild cases of Fail.

Person One: Man, that's like the fifth time today that I've lost my new phone. I haven't even left my house yet.

Person Two: Wow. You are really dropping pennies today.
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Person One: My arm is freaking sore.

Person Two: Couldn't get the PB&J jar open?

Person One: Actually, yea! My little sister had to open it for me. I loosened it for her though.

Person Two: Sure. Stop penny dropping, that was almost a full blown Fail.

Penny dropping by imakeithail May 5, 2009

Dropping a Penny 

(aka Abe Lincolning) The process of pretending to drop a penny on the ground, turning around, and getting on one's knees to "pick it up" in order to achieve the act of performing a blowjob on the person walking directly behind you (can be used to reference any blowjobs performed as well).

She is the best at dropping a penny, her nickname is the US Treasury

I met this chick at a party last night. She totally dropped a penny on me.

I drop pennies 24/7

You just got lincolned!

Dropping a Penny by Penny Dropper January 21, 2011