Spinning out is when you are on any sort of drug and you can't understand what is going on around you.
Dude i ahve smoked far to much ganga and am totally spinning out
by Lucy April 24, 2004
used as v. to describe a state of being frustrated with mental tasks; being stressed out. Fraze popularized when mentioned by one character Rich in a film "Murder by Numbers".
I have three tests in two days, I am spinning out!
by Sasha Henke February 17, 2006