Fizzy drink (3)WASATAB (3)
I believe the answer is:
pop
(Other definitions for pop that I've seen before include "Burst - fizzy drink - modern music - US dad" , "Old jingle - . . . goes the weasel" , "Thus goes the weasel in children's rhyme" , "Explosive sound; drink" , "Cartoon sailor (showing amazement?)" .)