Definition of fanboy
: a boy or man who is an extremely or overly enthusiastic fan of someone or something
Test Your Vocabulary
Name That Food
-
- Name these cookies!

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share fanboy
Time Traveler for fanboy
The first known use of fanboy was in 1919
See more words from the same year