wax lyrical

Definition from Wiktionary, a free dictionary

[edit] English

[edit] Verb

to wax lyrical (third-person singular simple present waxes lyrical, present participle waxing lyrical, simple past and past participle waxed lyrical)

1. (idiomatic, transitive) To talk about something with much interest or excitement.
2. (literally, transitive) To become, or tend to become lyrical.