the word to describe when you are not up, but rather, quite down to partake in usually obnoxious shenanigans. Only, said person does not want to merely say "down" but assert their creatively intelligent IQ level by combining the sounds of ACDC and Mariah Carey in one stunningly grotesque way.
Stranger: "Hey man, you wanna throw water balloons over at the dog park?"
Fun Stranger: "I'm downsies."
Fun Stranger: "I'm downsies."
by anonymous December 23, 2016

by Bobbygoo45 June 2, 2020

a rachet, roadhard slut, crazy as all get out, with bat shit Asian gangham style bangs, who looks like she has a touch of the downs.
by hokat November 14, 2013

John: Yo I just smoked another bowl. That makes 180!
Mike: Yeah well I drank a 30 pack of Corona, now I've got the sit downsies.
Mike: Yeah well I drank a 30 pack of Corona, now I've got the sit downsies.
by Sandwich Mike December 22, 2009

When you find out your crush has started a relationship with someone and you have a sour attitude towards life itself for the next three days.
Weston: George are you alright man?
George: Just a case of the three day downsies.
Weston:I...I am so sorry for you man.
George: Just a case of the three day downsies.
Weston:I...I am so sorry for you man.
by Adakrat October 13, 2012
