What does Allister mean?

Allister meaning in Urban Dictionary

An utter and full idiot which laughs entirely a lot of and functions like a retard. Embarrassing. However, everyone loves becoming around him and he is certainly one heck of a friend. Capable of making you laugh in even in the most grim situations, Allister is trusthworthy and loyal.

Allister meaning in Names Dictionary

Defender of man.
Name Origin: Gaelic
Name Gender: Male