noun: an induced case of idiocy caused by the witnessing or committing of an act, or display of, profound stupidity.

Ex: Watching Postal gave me a serious case of The Dumb.
by Sadistc Sweethart September 16, 2008
Happy St. Patties Day!
The dumbs - Becoming mentally disabled from extremely good sex. Symptoms may include euphoria, feelings of satisfaction, a silly grin, complete loss of motor control and inability to do most simple tasks
"Why is she so clumbsy today?" "I gave her The Dumbs good and proper"

"&%+#(@....sorry can't talk, got The Dumbs"
by llamalogic January 18, 2015
Happy St. Patties Day!