Predominantly used in London.
To 'clock' is: to realise, to catch on, to notice.

Voluntarily Celibate.
A person who chooses to be celibate. Can be for any given amount of time, for a short period or for their entire life. Can be for religious reasons or not.

related: incel

Beaten, bashed, punished. To hit someone.

Observed, recorded, noted. Possibly related to determining the speed of a car by using a stopwatch to time its travel between two fixed points, such as "He was clocked doing 60 in a 45 zone".

To get caught out, usually by feds (police)

To completly smash a video game. Meaning you get perfect scores and without losing a single life.

Coming from the definition of being punched in the face and knocked out, clocked is a new stoner metaphor for when one is cooked and tired.