(intransitive, idiomatic) To be experienced and knowledgeable. / (transitive, idiomatic) To be very familiar with; to have a significant understanding of.

(British spelling) Alternative form of practice what one preaches

Alternative form of pour one's heart out

(figuratively) To be aware of one's position.

(UK, slang) To start performing a task effectively or start behaving better in general; to shape up.

(US, informal) To stop lazing around.

(obsolete) To follow one's own opinion.

(informal) To understand one's situation, how to act in that situation, and the results of those actions.

Used to indicate that the number of some specified thing is very small.

present participle of put something behind one