All of the multi effects processors that come with an expression pedal have wah in it right? Like the Digitech RP350, the Boss ME-20, and the Line 6 Floor Pod. They all have an expression pedal so they all must have wah? Am i right or wrong?
yes. the digitech even has a whammy pedal "mode" in it.

Kramer Focus 3000
Ibanez ATK300
Rocktron Chameleon
Digitech IPS33B
Ibanez WH10
Korg Pitchblack
Line6 UX2