Definitions

1. interjection

a sound of satisfaction or excitement, similar to ‘yum’

“As I took a bite of the delicious cake, I let out a happy ‘tyum’.”

2. noun

a unit of volume, especially in the US customary system, equivalent to 0.785 cubic inches

“The recipe called for 2 tyums of oil, which was a bit confusing since we used cups instead.”