My Student's Nicknames

In Thailand, where nicknames have to mean something, I’m not sure what makes parents name their child Beer. At least with the nicknames Bong and Zigzag I can assume Mom and Dad were ignorant of the pot reference, but sometimes, when they nickname their children Dollar or Boring, I wonder if they speak English at all.
Names like Lucky, Joker, and Beauty seem normal enough, but I’ve still never understood how parents came up with Cartoon, Nookie, or Big Bomb.
I can’t speculate on the psychology of the phenomena, but for some reason boys nicknamed Love, Arm, or Donut always end up katooeys (lady boys.)
Then there are girls with names like John, Ben, and Jimmy.
I understand that Brad Pitt and Jack Sparrow have given me false nicknames (that I allow them to go by) but I’m still trying to figure out if Rik Jaim’s parents are really Superfreak fans or not.
Then there’s the question of whether Party is always throwing keggers or whether Punch is prone to fist fights. I also wonder if Dick ever hangs out with both of the Balls. Other nicknames seem obvious though; I think poor Fluke and Extra are just lucky to be here.