Come On Man

Im def voting Biden

Def isn’t a word. It’s voting “for” Biden. I can do this grammar thing exceptionally well. Perhaps you have a common frame of reference?

Cause your an idiot?

It’s you’re

Okay you’re definitely an idiot.

“Cause” isn’t a word.

Cause is a word.

noun
a person or thing that gives rise to an action, phenomenon, or condition.
"the cause of the comment is because you’re an idiot”