one-and-a-half 

(verb) to make out with someone in an intimate manner, such that you seem to occupy the space of one and a half persons

"Dave and I totally one-and-a-halfed on that chair last night!"

one-and-a-half by UDallasFemme October 10, 2011

One and a half 

To shit and piss your pants.

"Sorry your honor I took a one and a half on the elevator. That's why we're late I sh*t and pissed my pants."

One and a half by ShutupimaShark January 9, 2013

one and a half 

To only have one and a half testicales

hipmo hehe

Mr Mallinson has one and a half

one and a half by hipmo August 7, 2007

One-and-a-half Date 

Not quite a double date, but not exactly a date either. It's when you invite someone out on a date, and they pull a defensive maneuver and bring a friend along, as a date shield.

Dude, I asked out that hot chick Sally on a date Saturday to cool party. She said yes, because she knew it was a cool scene, but she turned it into a one-and-a-half date, bringing along her BFF Tina to cock block.

One-and-a-half Date by rickbrunernyc April 10, 2010

one and a half sandwiches 

The act of making sandwiches to a fractions. To suffice your and possibly another's hunger.

"Hey teagan...you hungry bro??? Yo you should make one and a half sandwiches and give me half!"

one and a half sandwiches by jformo October 28, 2013

one-and-a-halfsome 

Secks between a normal-sized person and a midget.

A twosome would involve two normal-sized people, so therefore a one-and-a-halfsome would involve a normal-sized person and a person half the size of a normal person, or a midget.

one-and-a-halfsome by Taco Monkey January 2, 2007