Drop beneath the/(one's) radar verb phrase
Ignored or unnoticed by one
Though there are lots of cameras in prison, some prisoners still drop beneath the radar and escape successfully.
No one found out about his scam because he took advantage of his authority to drop beneath the radar.
He dropped beneath the radar and successfully stole a lot of valuable items in the mall.
The verb "drop" must be conjugated according to its tense.
1. To punch a hole in one's ticket to show that they have paid for a ride
2. To do something that allows one to go further in a competition or to be promoted at work
1. Please, tell me if I forget to punch your ticket.
2. With a view to punching my ticket to the final, I did whatever it takes to win this round.