A person usually says this when they were sleeping and got woken up by an alarm or person. They usually don't come after 5 minutes.
"Wake up, (tired person), it's time to go to school." said (person). "5 more minutes!" (tired person) said.
Not 5 minutes
Usually when people say 5 more minutes they are slower than people that say 6 more minutes
A:When are you coming
B:5 more minutes (gets slapped through the screen)
A:dont be lyin brah.