It's Day Four of our 100th Anniversary Trivia Challenge!

Today's question is:

Name the comic strips in which the following expressions were coined or popularized:
a. “Are we having fun yet?”
b. “Jeep” and “goon”
c. “Horsefeathers,” “heebie-jeebies” and “time’s a-wastin’”

Answer:

a. Zippy the Pinhead b. Elzie Segar’s Thimble Theatre starring Popeye c. Billy DeBeck’s Barney Google (later known as Barney Google and Snuffy Smith)