Ronan Farrow hasn't spoken with his father, filmmaker Woody Allen, since the latter left the former's mother, Mia Farrow, for Soon-Yi Previn — Farrow's adopted daughter.

And, if yesterday's Father's Day tweet is any indication, the two probably won't be on speaking terms any time soon.

"Happy father's day," the 24-year-old Rhodes Scholar tweeted. "Or as they call it in my family, happy brother-in-law's day." Adding fuel to the burn, Farrow's mom later retweeted the gibe and added a single-syllable emphasis: "Boom."

Allen and Farrow's 12-year relationship ended in 1992 after his affair with then-21-year-old Previn was discovered.

[H/T: Videogum]