jerk off

From Wiktionary

Verb[change]

Plain form
jerk off

Third-person singular
jerks off

Past tense
jerked off

Past participle
jerked off

Present participle
jerking off

  1. (vulgar) (slang) If a man jerks off, he masturbates.
  2. To waste time.
    Stop jerking off, we have a deadline.