What is W99t?
1.
The facetious version of "w00t", which has been combined with "rolling one's eyes" (99) . "Yippee. Hoo-ray."
"My boss is upgrading my workstation. From a 486 to a Celeron. w99t."
See
2.
an expression of happiness and excitement, a variation on w00t
comment: something good happend...etc...
response: w99t!