Wahlberg was born  in the shithole that is the city of Bawwwstin. Wahlberg had nine siblings - including his big brother, Donnie Wahlberg, who, like Mark would later pursue a career in both music and acting, but, unlike Mark, is not a total cunt. Donnie and Mark formed a boyband in the 1980s called The New Kids on The Block, but Mark dropped out when he decided, quite rightly, that that shit was gay and that he'd have more fun entertaining himself in other ways.
Anyway, none of that shit really matters, because it turns out that Mark Wahlberg was a right little fucker growing up, always getting into trouble and engaging in really quite audacious acts of IRL trolling.
All of the following is taken from Mark Wahlberg's Wikipedia page. We didn't make this shit up, honest, it's all completely true. You don't believe me, go check. Wahlberg had been in trouble 20–25 times with the Boston Police Department in his youth. By age 13, Wahlberg had developed an addiction to cocaine and other substances. At fifteen, he harassed a group of black school children on a field trip by throwing rocks and shouting racial epithets.  Despite the seriousness of Mark Wahlberg's crimes, it seems to have had no impact on the trajectory of his career whatsoever, thus proving that in Hollywood, it doesn't matter who you are or what you do, so long as you know the right people.

Eventually, a concerned net citizen brought Wahlberg's chequered past to the attention of /tv/, the 4chan board which, in theory is dedicated to television and film, but in practice is actually dedicated to ogling the feet of underage actresses, heaping scorn on Internet reviewers and, every now and then, sperging about Game of Thrones and Doctor Who.
Fa/tv/irgins were only too quick to seize upon Mark's ingenious and hilarious coining of the phrase 'Vietnam fucking shit!' and were soon bellowing out the phrase all over the board, joyously calling one another 'Vietnam fucking shits' and telling eachother to get out of their respective ways, before firing up their pirated copies of Photoshop to create amusing images of Marky Mark menacing Vietnamese people.