present participle of nod off

simple past tense and past participle of lay off

simple past tense and past participle of head off

Third-person singular simple present indicative form of head off

(transitive and intransitive) To become detached or to drop from. / (intransitive) To diminish in size, value, etc.

(intransitive, slang) To complain or otherwise express oneself in a loud, immoderate manner. / (transitive, intransitive, slang) To talk impudently, especially to one's superior.

present participle of mouth off

Third-person singular simple present indicative form of mouth off

simple past tense and past participle of mouth off

Not related to the matter under discussion.