A 'tea tainter' is an adult person who tarnishes the tremendous taste of tea by tainting it with sugar. A child is not yet considered wise enough to be responsible for their terrible tea tainting tendencies. However, an adult has no excuses and should have grown into more mature tastes by now. Drinkers of milky tea may also be described as tea tainters.
The term was first coined by Adam Tong in mid-2011.
"Do you take sugar in your tea, Samuel L Jackson?"
"No I don*t take motherf***ing sugar in my motherf***ing tea, you motherf***ing motherf***er. I ain't no tea tainter motherf***er. But thanks for asking BITCH."