1. A phrase use to describe something, or someone that is uber cute and/or adorable.

2. A.K.A- Kawaii

3. A phrase used in the anime "K-on!" by Yui and Riccchan to describe the absolute adorableness of their friend Mio.
Mio sits in a corner after being teased, and looks at you with a blushing face, on the verge of tear.

Yui and Ricchan stare at her in awe, and make heart shapes with their hands.

"Moe moe, kyun!!"
by Chiona March 3, 2010
Get the Moe moe, kyun! mug.