yum-yum adjective & noun.
[jʌm'jʌm] slang.
L19.[from yum-yum var. of YUM.]A. adjective. Mouth-wateringly delicious;
fig. excellent, first-rate.
L19.■ A. Buchwald All her girls are really yum-yum girls from the dance halls.b. noun.
1. An action providing a pleasurable sensation;
esp. love-making.
L19.2. An item of delicious food.
L19. [TahlilGaran] English Dictionary ▲
yum yum interj.,
informal ■ Used usually by or to children, to express great delight, especially in the taste of food.
"Yum-Yum! That pie is good!" [TahlilGaran] English Idioms Dictionary ▲