Abe Lincolning is a practical joke involing a person walking into a bathroom and peeing all over his or her hand. After he or she has done so they will exit the bathroom and locate the nearest douchebag or dickhead. After this step they will approach the selected douchebag or dickhead and proceed to give them a sincere and heartfelt handshake.
To pull an Abe Lincoln:
Person 1: Hey why is that shithead over there crying?
Person 2: I just pulled an Abe Lincoln on the Son a bitch.
Person 1: HaHa classic.
(Much high-fiving and celebration is had.)
Abe Lincolning is the act of entering a bathroom, pissing all over your hand, then exiting the bathroom and shaking someone else's hand with the hand that has been pissed on.
(Person 1 exits bathroom just after Abe Lincolning).
Person 1: Hey buddy, how's it going?
Person 2: Not bad, how 'bout you?
(Persons proceed to engage in cool hand shake involving much hooting and hollering.)
Person 2: Hey dude why is your hand all wet?
Person 1: (Laughing) Dude you just got Abe Lincolned!
Person 2: NOOOOOOOOOOOOOOOOOOOOOOOOOOOO!