- slang an erection of the penis
Examples from the Web for stiffy
Historical Examples of stiffy
At the door Stiffy said, as a matter of form: "Coming, Mahooley?"
Stiffy came quickly out of his little box to see what was up.
Stiffy and Mahooley fired their cook and went with the rest.
For their usual card-game they adjourned to Stiffy and Mahooley's.
Of them all only Stiffy, in his little compartment at the back, was busy.