A woman's discrete ejaculation of a man through the use of one or more hand(s). Specifically refers to a situation with a high risk of discovery, e.g. at the movie theater, under the dinner table or in the back of a taxi cab. (Note: Some women lack the forearm strength to perform the handango to completion.)
The best part of the ride home from my eighth grade field trip to Washington D.C. was getting a handango under a blanket at the back of the bus.