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This refers to when you jerk off in your hand and fling your wad onto your sleeping girlfriend's back.
Joe: Did you do anything last night?

Dave: No, just went home and splaknooked my girlfriend.
by j-dags August 11, 2006
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Aug 3 Word of the Day
Condition which causes you to place an Amazon order, then shortly after remember something else you needed and place another order.
Wow, 10 Amazon boxes showed up on my door today. My Amazheimer's must be acting up again.

Person 1: Bro, your Amazheimer's is getting out of control.
Person 2: It's OK, I have Prime.
by SamboMayhem August 01, 2020
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