IPA: /ˈweɪstər/
KK: /ˈweɪstər/
A person who uses resources carelessly or extravagantly, often wasting time or money without thinking about the consequences.
He is known as a waster because he spends all his money on unnecessary things.
Waster → The word originates from the Old English 'wastan', meaning to waste or destroy. It refers to someone who wastes resources or opportunities.
Think of someone who 'destroys' ('wastan') resources — that's why a 'waster' is a person who wastes.