get going: leave.
"Look at the time! I'd better get going!"
get it: understand something (often negative).
"I don't get it. What do you mean?"
get a kick out of something: find something amusing.
"I really get a kick out of listening to children talk. They say some
very funny things."
get lost!: go away
"I wish he'd get lost and stop bothering me. I don't want to talk to
him!"
get on one's nerves: irritate someone; make someone upset.
"I know you like that song, but it's