Top Definition
When a man inserts his johnson in his sleeping wifes or gf's pussy or ass.
my wife went to bed early so I made a night deposit.
by Your banking advisor August 08, 2011
1 more definition
Being awakened to drop a deuce in the middle of the night. Alternately, having a child in diapers shit at night, forcing you to wake up and change them.
Damn, I'm never eating Taco Bell after 6 P.M. again. I woke up at 4:30 to make a massive night deposit.
by pb0216 October 15, 2010

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