Green’s Dictionary of Slang

drill v.2

[the slow progress of a drill as it penetrates wood]

1. to lure, to entice slowly.

[UK]Woman Turn’d Bully III iii: O ho, are ye there? He’s at it again to drill me off, but all this won’t do.
[UK]B.E. Dict. Canting Crew.
[UK]New Canting Dict.

2. (US) to stare.

[UK]R. Gary Ski Bum 32: That guy at the bar is sure interested in your behind. Keeps drilling. In America it’s breasts, but in Europe it’s always your ass.