"زعلان" and "أزعل" are colloquial Arabic words that are are not usually uses in standard Arabic... However "زعلان" means "sad" or "unhappy" and is an adjective "ازعل" is a verb that means getting unhappy or feeling sad and it's only used when referring to yourself.

its egyptian not formal arabic زعلان adjective means"sad"or u can use sorry but not always ازعل its verb but "command verb" mean "be sad" انا زعلان لان فاشل Im sad because I'm failure

ازعل يا بني آدم be sad o human being شايفك زعلان I saw you looks sad P.S: nancy agram dailect