masturbate

verb3

1. •
   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.
2. •
   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
3. •
   (informal, disapproving) 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.