Referring to a male or male parts.
Person: Hello upside-down unicorn
Random male: what?
Person: you are a male so I define you as such
The title given to a woman with picky virtue that caused 25 people from town to be arrested when the rape kit results came back
You were fine with sex TWENTY FOUR times today, but 25 is where you draw the line Denis; such a picky Upside-down Unicorn!!
An extremely useless portion of your body unless you have a hottie who could sit on there comfortably and you could make some lovely memories, Yes, I'm talking about your thighs, your manly lap. The idea behind calling it "Upside Cheeks" is - Your but are cheeks which are down while you're sitting or laying down therefore, Your thighs/lap which is opposite to your downwards cheeks should be called as Upside Cheeks.
His man got smooth Upside Cheeks!
When an authority figure such as an army captain or schoolteacher threatens to punish you by bending down, grabbing your ankles from behind, lifting you into the air and shoving his dick in your mouth
"Man, my PE teacher was so mad at you yesterday he threatened to turn you upside down!"
A stupid person (usually used in text)
Jack: *cracks a stupid joke*
Thomas: "Listen here you upside down arse"
The upside down cup outside my door was much needed today
An egregious act that I can't believe is actually seen as acceptable in todays society. It is so horrid that I will not even type the definition of the action in here. I don't get how kids these days are into this and why are they teaching this to our children
"Me, my girlfriend, her brother, and their mom totally went for some upside down reverse sherif sherif last week"