The phrase has to do with reliability. You can wager money on what will happen, and if you have inside information and you're 100% certain your bet is right, then your pay-off is assured; you might as well call it "money in the bank."
You can also use the phrase to describe someone who is very consistent in their behavior, because if you bet on him or her, you know you'll win. It's usually used in a positive sense to describe someone who always delivers and brings joy or victory. A synonymous phrase would be "reliably good."
The slang use of the term "money," as in "you are so money right now" is presumably derived from "money in the bank." It means not just excellence, but excellence demonstrated on repeated occasions, establishing a pattern of reliability. It can be used to compliment someone for just one instance of excellence, but it still implies that this one instance reflects on the excellence of the person's larger character, that they would be expected to be excellent again.
Yankee fan 1: Do you think Mariano can close this thing out?
Yankee fan 2: Are you kidding? He hasn't allowed an earned run in 2 years. Money in the bank, baby.
Indians fan (weeping): I am holier than thou in my suffering.
Yankee fan 1: Sorry, I couldn't hear you, Indians fan. The wheel of my victory chariot must have been lodged in your windpipe.
92๐ 35๐
to make money, get enough to pay your bills or expenses with excess, acquire money etc.
Damn son, I'll be making bank with my new job!
57๐ 20๐
Somewhat similar to "Beer Goggles", a common ailment in which one's over consumption of alcohol makes it appear as if said victim's bank account is several times larger than reality. Victim is prone to suicide and/or vehicular reposession/eviction shortly thereafter.
"No way Scott - you aren't paying for all of us... take your Bank Goggles off."
"Oh, bullshit!", he yelled as he picked himself up off the bar floor. "Let me pick up the tab - we've had bottle service for 9 hours, so I can't really do the math right now. Hell, it's only $3800, who cares! Pfffft. Bag Nozzles! Whatever."
8๐ 1๐
To masturbate prior to a date where you are pretty sure you will get a shag. Having already ejaculated some hours before, the shag lasts its maxmum time
Anne was hot, good job I had a wank in the bank or I would have blown my load before she even got her knickers off
17๐ 4๐
Noun. A zoo of images one creates in his or her mind in order to be withdrawn at a later date to be used as assisistance while pounding one out. The bank is only temporary storage and is inferior in many ways to the cellular phone camera.
See mental picture.
Damn I hope the spank bank is open on sundays because I'm makin' a deposit!
395๐ 180๐
A member of G-Unit.
Got shot 2 times, had to run himself to the hospital and got hit by a car on the way.
Good rapper.
Lloyd Banks drops that ill shit.
117๐ 47๐
A Horny Teacher/Employee that jacks off in school/work
Guy1: Did you hear about Mr. Woodward?
Guy2: No, what did he do?
Guy1: He did a Spanky Banks in the Boy's Restroom!
Guy2: That's fucking gross...