Calums are annoying and are a dumb species, usually found near the wild classes in the dangerous school, if you see a Calum, be sure to ask him the hardest math question to make him look dumb
Person 1: Calum what is 6x2
Calum: 69 billion
Calum. Calum is a simp and is attracted to girls called Sophie's with really blonde hair. He likes to call them highlighters cause he wants them up his arse hole.
Calum you simp
a cool person who loves ducks and has very much rizz
Look at Jerome being a Calum bro
If you ever come across a calum run for the hills. Calum may seem kind, loving and caring but once comfortable, calum will show his true colours. Calums are heartbreaks, don't give a fuck about anyone but themselves and I wish I never met a calum. Calums pretend to care about you and your problems but really he'll use them to break you down.
Person1: I just pulled a calum dunbar
Person2: Another one down!