Oh me, oh my, small fry! This is a Max Fleischer short from 1939.
The song Small Fry was written by Hoagy Carmichael and Frank Loesser in 1938. It was sung by Bing Crosby, Fred MacMurray, and Donald O'Connor in the movie, "Sing You Sinners."
The 'prequel', Educated Fish, from 1937.