trash melon

Cheap, inexpensive, and disappointing melon that's used to take up space from otherwise good fruit real estate in a fruit bowl. Examples are Cantaloupe (musk melon) and Honey Dew.

"I got an edible arrangement in the delivered, but it was all trash melon so i threw it out."
"I went to get something from the fruit bowl, but there was only trash melon left."