To sneak up on someone and place your man bits on their head while they are sitting, most likely seen with the penis acting as the 'bill'. Can be worn in different styles & directions.
"Did you see the Panama Hat that John gave to Sally, it was exquisite! ...Don't think it'll protect much sun though,ah hah hah."
by John O'Hurley & the HighFlyers March 6, 2009