Top definition
adj. having copious amounts of peanut butter to the point where milk is absolutely necessary.

Contraction of Peanut Butter and Fantastic, used primarily in modern stoner speech
Man, this sandwich is gonna be peanut buttertastic! Hand me that milk, bro.
by Skippy Jif Reeses December 02, 2008
Get the mug
Get a Peanut Buttertastic mug for your Facebook friend Jerry.