A person who knows what you mean when you say something but acts confused.

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

Someone who can't figure out what a dumbfuck is.

1. Someone who gets easily confused and fails to use common sense when neccessary.

2. Someone who is so fucking stupid you want to meet their parents so you can pour hot coffee on their face.

Someone that's just dumb as fuck.

an extreme dumbass
(dumbass)^(dumbass)=dumbfuck

1. A person is so incredibly stupid that it is not even funny any more.
2. The current occupant of the White House.