The frustration experienced as a result of a backrub stopped too soon, especially when the backrub giver never intended to follow through with the backrub in the first place. A phenomenon similar to, but less severe than, blue balls.
She rubbed my shoulders for about three seconds then just laughed and walked away. Now I've got blue back.
by snaptastic February 16, 2010
Get the Blue Backmug. a blue angle is when you need to fart and you stick a lighter by your bum so it a mini flame thrower
by the love merchant June 6, 2018
Get the blue anglemug. Blue tits is a condition often described by sexually frustrated women or girl as a painful tingling in the tits and clitoris accompanied by a slight blue tinge of the cheeks. It's caused, or at least claimed to be caused by a need for orgasm.
“Matthew showed me his sweet cock, and then took off on me. Now I have a case of the old blue tits.”
by Hisforhat February 5, 2019
Get the Blue titsmug. by EPS February 24, 2005
Get the blue diamondsmug. The crazy old Texan Vietnam vet we gave an MRI to today asked if we could put in a porn for him to watch during the scan. To which I responded "no sir we need minimal movement from you for optimal results". He said "Don't worry son, I haven't had my blue thunder today yet."
by fjordy December 28, 2005
Get the blue thundermug. 
Artificial sweetener. So called because the most common brands, Sweet-n-Low and Equal, are available in pink and blue packets respectively.
by uwg August 10, 2007
Get the pink and bluemug.