its an insult from the remake of the 90's movie IT. Richie Tozier ( Trashmouth ) says it after beating the shit out of Henry Bowers and his goons with help of the losers club. After he was saying the phrase he gives the weirdo both birds, then joins the rest of the ' Losers '
" Go blow your dad you mullet wearing asshole ." Richie exclaimed after the ' Rock war ' with Henry and the assholes.
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