What cause a 'whitey' when you smoke cannabis?

What cause a 'whitey' when you smoke cannabis?
hmm,,wtf is a whitey?
An undesirable reaction to smoking cannabis adjectives amongst lightweights and first-time tokers. Symptoms include dizzyness, clammy skin, nausea and vomiting.
It gets its autograph from the paleness of the sufferer as the blood drains out the capillary under the skin due to a grow less in blood pressure.

I never used this possession but I have experienced this for sure.