The sources checked record Magoo only as a word with other referents, not as a personal name.
Affection
Funny
Gray, Brown, Black, White
Small
Unisex
English
M
5 Letters
A surname
English word for a gadget, especially one whose real name is unknown or forgotten
No documented meaning; recorded as a rare modern American English given name
Recorded as an archaic Manx feminine given name
An English surname