What is wha on guitar, a tab im reading is a solo and b4 the tablature starts it says w/wha whats it mean?

Question

most solos ive read says this

Answer 1

Guuitar effect. Bands use it to make them sound different especially for solos because you want the soloist (guitar usually) to stick out. Usually it is done by some type of pedal or a special amp or PA system. It could be done by a lot of things.

Answer 2

Wha is a effect. Its a wah wah pedal.