wax lyrical

present singular third person waxes lyrical · participle present waxing lyrical · participle past waxed lyrical · past waxed lyrical

1. To speak very enthusiastically about something.

   1 more example

   Axe-grinding columnists and politicians are therefore disingenuous when they wax lyrical about the quality of the meals served on the Continent by the International Wagons-Lits Company (and in France, though not in Italy, I personally have not found the quality outstanding for the high price demanded) [...].

   1960 March, G. Freeman Allen, “Europe's most luxurious express - the "Settebello"”, in Trains Illustrated, page 142