masterbate

Verb

masturbate (third-person singular simple present masturbates, present participle masturbating, simple past and past participle masturbated)

1. (intransitive) To stimulate oneself sexually, especially by use of one’s hand or a sex toy made for this purpose, often to the point of ejaculation or orgasm.
   • I'm looking for some hot videos to masturbate to.

   Synonyms:

   abuse, bash one out, bash the bishop, bate, beat off, beat the meat, choke the chicken, crank the hog, diddle, fap

2. (colloquial, transitive) To manually or by other means than one's own genitals stimulate someone else's genitals sexually.
   • Mrs Intiasar’s maids often masturbated her in the morning. It wasn’t something she discussed with anybody, least of all the maids. In fact, she hardly thought about it.2021, Leone Ross, This One Sky Day, Faber & Faber Limited, page 293
3. (derogatory, informal) To stimulate or please oneself by means of anything, not necessarily sexual, that does not get them anywhere; something that wastes their time; something that does not help others or achieve any important goal.