Dons jeans without briefs.
Forgoes tuck, then zips with zeal.
Penis flytrap bites.
See also this haiku’s limerick companion piece:
Since the invention of the zipper in 1913, livescience explains, “the device has proven immensely popular, replacing the button fly on most trousers, jeans and pants, for men as well as women. And now we’re paying the price for the zipper’s speed and efficiency at the emergency room: According to a new study from the urology journal BJU International, an estimated 17,616 people went to the ER from 2002 to 2010 with genital injuries.”