jīn jīn yǒu wèi

津津有味

to eat something delicious

with gusto; with relish; with keen pleasure and great interest

Example:

吃得津津有味
chī de jīnjīnyǒuwèi
eat with great relish

讲得津津有味
jiǎng de jīnjīnyǒuwèi
talk with gusto

这个故事他们听得津津有味。
Zhège gùshi tāmen tīng de jīnjīnyǒuwèi.
They listened to the story with great interest

津津有味地看报
jīnjīnyǒuwèi de kànbào
to devour the newspaper