corn-ball noun & adjective. ['kɔ:nbɔ:l] M19.
[from CORN noun¹ + BALL noun¹.]
A. noun.
1. A sweet consisting of a ball of popcorn and syrup. US. M19.

2. A corn-ball person. slang. M20.
b. adjective. = CORNY adjective¹ 5. slang. M20.

[TahlilGaran] English Dictionary ▲

corn ball
n., slang, informal
1. A superficially sentimental movie or musical in which the word "love" is mentioned too often; a theatrical performance that is trivially sentimental.
That movie last night was a corn hall.
2. A person who behaves in a superficially sentimental manner or likes performances portraying such behavior.
Suzie can't stand Joe; she thinks he's a corn ball.

[TahlilGaran] English Idioms Dictionary ▲