Cockligraphy

Inserting a bic ink stem into an erection in order to sign an alimony check.

Alt.

In northern states, writing your name in the snow with urine.

"Wait Johnson, by the body... this hobo didn't die of exposure! Note the distinct cockligraphy in the snow. H...A...H...A...H... a series of dashes and one line through the characters... I've seen this before!"