knocks in

Verb

knock in (third-person singular simple present knocks in, present participle knocking in, simple past and past participle knocked in)

1. (obsolete, Oxford University slang) To enter college after hours—after half-past ten at night when the doors have been locked.
   • "Close the oak, Jem," said Horace Eglantine, "and take care no one knocks in before we have knocked down the contents of your master's musical melange."1825, Charles Molloy Westmacott, The English Spy, page 138
2. (transitive) To pot (a ball)
3. (transitive) To score (a break)
   • With the tension rising Brecel knocked in a timely 51 to leave himself on the brink of victory, which he confirmed with a stylish 112 break.2023 May 1, Steve Sutcliffe, “World Snooker Championship 2023 final: Luca Brecel beats Mark Selby for first world title”, in BBC Sport

See all 4 meanings of knock in