Bump, I wanna know too.
Sounds like some obscure Japanese trigonometry pun.
Bump because I can explain.
It's supposed to make Microsoft Sam pronounce "Anata ni- Anata ni- senchimentaru".
I can roughly translate this to "To you- To you- I'm sentimental". Backing me up are some tags on NND about this meme that say "anata ni sentimental".