look up any word, like jamflex:
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 02, 2010