@lmur,
I think, I'd posted that already. But IMO it's worth to repeat:
Brulljesmacher is, interestingly enough, the nickname of people from Kallstadt, the place of origin of Trump's great ancestors in the region.
And
Brulljesmacher means a very boastful and talkative person, a blowhard, bragger, line-shooter, egoist, a conceited and self-centred person.
(From French
brouille + maker) [Source: Rhenish dictionary, 1923–1928]