by BM25660 March 5, 2021

cheap (inexpensive) prostitute.(obs.) word from Victorian England. threepenny (thrup'ny) was the price, upright was the position (to facilitate speed, therefore rapid turnover of customers), "the deed" was frequently done in alleyways. Known use found in Bertolt Brecht's "The Beggar's Opera".
" 'es got the pox from seeing too many thrup'ny uprights" "A Lady?, Hell, she's naught but a threepenny upright."
by mike, PS1, USCG December 30, 2006

Another term for a double bass, acoustic bass, or bass fiddle. It's the largest of the string instruments (resembling a giant violin) and lowest-sounding instrument found in an orchestra. Can be played with a bow or plucked with the fingers. The word "upright" means that it is to be played while standing up while holding the instrument upright, as opposed to how a bass guitar is held (on the lap or at a 45 degree angle). Also not to be confused with the cello, which is smaller and played while sitting down.
by Bill M. August 27, 2004

by Mindtrix July 6, 2017

An upright organ is a very special insturment commonly referred to as a PENIS. Someone who plays the upright organ sucks a lot of cock.
by Tommy K. June 26, 2005

When an adolescent male gets an unexpected erection in public, and tucks said erection into the waistband of his pants or shorts in order to conceal.
"Dude, it was the WORST! I was walking down the hall to geometry class, and saw Jessica walking in front of me, and got a boner and had to Upright Piano, because I didn't have my backpack with me to hide it!"
by Carl Winslow is the Man June 19, 2019

by p90210 July 7, 2017
