One whom wields so much fucking bullshit that they must have a wagon attatched to their ass to carry it all.
Eric: "Hey Billy, I had your mother last night."
Billy: "Fuck off Eric, you're full of shit."
Eric: "You know Claire, I heard Billy likes to wear little girls panties for fun."
Claire: "God Billy, Eric is such a fuckwagon, why do you hang out with him?"
Billy: "I don't. Who told you I hang out with him?"
Claire: "HE did."
Billy: "God, what a FUCKWAGON!"