Definition of "speak for oneself" in English

Verb

1. Expressing disagreement with an opinion expressed by another.

   • That idea makes no sense at all. – Speak for yourself! I think it's a great idea.

2. To have obvious implications; to require no explanation.

   • His fantastic record as a manager speaks for itself.
   • His actions speak for themselves.

3. Used other than figuratively or idiomatically: see speak,‎ for. To provide an opinion only on one's own behalf.

   • I'm here speaking for myself, not for my company.