Quite simply when someones bald
"awh look at the little kid. Hes bald"
"i see, he must have dallon syndrome
When someone plays video games religiously, has never ending munchies, loves music more than the average person (excluding pot-heads), always loses personal objects (phone,keys, wallet), uses gamer/nerd lingo, smokes hookah and hangs out with stoners but refuses to smoke weed.
Joe: What's up man? What did you do today?
Jack: Nothing much just hung out with my friend Bob. We chilled listened to music, played some xbox 360 and ate pizza.
Joe: Nice brah sounds like you guys got hella blazed!
Jack: Nah man Bob doesn't blaze, he's got Dallon Syndrome.