Acronym for "With his dick."
The phrase is an alternative to the popular game of adding the words "In bed" to the end of any fortune cookie fortune.
Popular amongst first generation Azorean immigrants living along the Northern California coast.
"Let there be magic in your smile and firmness in your handshake.... WHD"
"As the purse is emptied the heart is filled... WHD"
W - What
H - Hell
D - Dude
uses - statement of: confusion / sudden excitement / given surprise
john walks up to bob, kicks bob in the fuck sack
bob in massive confusion, sudden excitement, and to his given surprise, loudly states "WHD!!"