A blow tard is a partiallyretarded person who is such a dumbass, they can be persuaded to blow anyone and anything. A perfect example is that twinky bitch Jarred.
Jarred are you sucking that pig off.....fuckin' blow tard.
or
Oh my god is that Jarred? What a blow tard. He once raped a pidgeon.
1:A cokehead of usually the younger female, although can be male, persuasion who is convinced and will attempt to convince others that they are addicted to cocaine when they only do it rarely or at large parties.
Did you hear what that Texas Governor Rick Perry said about global warming being a hoax to line the pockets of scientists? If not you'll undoubtedly hear it again, that blowtard loves the sound of his own voice.