Like-father-like-first-son, Donald Trump, Jr., took to Twitter on New Year's Eve to celebrate his 40th birthday — and to make his "annual pre-apology" for the "overreaction" he expected to his 2018 posts.

Time for my annual pre-apology. I would like to pre-apologize for anything I say or do here that you don't like. I'm not going to change anything per se just apologizing for your overreaction. #happynewyear 😂😂😂 — Donald Trump Jr. (@DonaldJTrumpJr) December 31, 2017

With his social media jab, the younger Trump continues to showcase his inherited knack for brash — as illustrated in a tweet ahead of passage of the GOP's tax code overhaul mocking detractors' concern about the plan's deadly effect.

They will obviously be more dead... much more dead!!! https://t.co/3LEoX7DCXa — Donald Trump Jr. (@DonaldJTrumpJr) December 19, 2017

The first son also retweeted a jab at Hillary Clinton after the Democrats' surprise upset in the Alabama special Senate election — along with the hashtag ThingsITrustMoreThanCNN, echoing his dad's "fake news CNN" insult.