Definitions by El Doriano v2.3 ---New and Improved---

Hyaaaaaa 

A noise made when feeling anger or hitting out at something. Or just to be cool.

*max just farted* Hyaaaaaa
*someone is staring at you* Hyaaaaaa

Hyaaaaaa by El Doriano v2.3 ---New and Improved--- December 1, 2003