What does "forget about" mean?

To not think about something or someone, to fail to remember, or to disregard someone or something.

Forget about

verb

verb ·Rare ·Advanced level

Verb

1
To not think about something or someone, to fail to remember, or to disregard someone or something.
2
To abandon a dearly held desire, or a familiar comfort, under pressure from an inescapable stronger party.
"If you're not at work in 15 minutes you can forget about ever coming back."

"If you're not at work in 15 minutes you can forget about ever coming back."