Refers to a girl who you have on the side.

You have a wife or steady girlfriend - she is your (#) One.

The girl on the side or the one you stash away - she is your (#) Two.

Commonly used by musicians to describe the girls "on the road."

In some cases, even if you have no "number one," a random hookup or a girl who will never be considered for the "one" spot, can also be considered a "two."

Also referred to as "doing the two."
"My wife/girlfriend isn't around, time to find me a two."

"You gonna do the two tonight?"

"Where my two's at?"
by Metal Maven August 10, 2013
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Nickname reserved for those whose name contains two s's. i.e. Lissa
Most that fall into this category are: amazing, fantastic, hilarious, fun, etc.
I had so much fun with you today Two S You're hilarious!
by TwoS January 17, 2009
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double good bye (in addition to 'one')
cya cya, bye bye, peace peace, one two out
alright man, cya later, one... ok later, two...
by pimpinat31 April 29, 2003
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An exclamation made to show ownership of a seat in a room. When getting up from one's seat, proclaiming twos leaves this particular spot branded by the one who was sitting in it until they return. Sitting in someone's seat after having called twos often times leads to both physical and verbal attacks. Twos must be called while still touching the seat and is invalid if called while standing up. In the instance that he who called twos is to take a seat anywhere else, twos is immediately cancelled and the seat is once again up for grabs. Twos is not valid if he who calls it leaves in a vehicle with expectations of getting their seat back when they return. One is allowed to take a bathroom break and call twos without the toilet counting as another seat.
Zack: What the hell are you doing in my seat?

Greg: You didn't call twos bro, the seat is mine!

Zack: Bullshit!

*commence fight to the death*
by Nacho Supreme August 04, 2008
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