outstay/overstay (your) welcome

to stay in a place longer than someone wants you to stay.

One more cup of tea and then we'll go. We don't want to outstay our welcome!

• know stuff
• know the drill
• know the first thing about
• know the first thing about something
• know the half of it
• know the meaning of the word
• know the ropes
• know the score
• know through and through
• know way around
• know way around something
• know way around somewhere
• know what are doing
• know what are talking about
• know what hit
• know what hit you
• know what's what
• know what you are doing
• know what you are talking about
• know where stand
• know where to put
• know where to put yourself
• know where you stand
• know whether are coming or going
• know whether to laugh or cry