Wiktionary
n. (alternative spelling of belly flop English)
WordNet
v. dive so that one hits the water with one's belly
[also: belly-flopping, belly-flopped]
Usage examples of "belly-flop".
He'd have belly-flopped on the pavement if Toster hadn't been there to catch him.
Justin reached the hole only two steps ahead of Jessica, but his momentum, belly-flopped him into the water.
Then he took off his hat and belly-flopped in the stream-side sedge to water himself just upstream.
A white form came plummeting downward, belly-flopping into the water with a lethal smack.
She stretched her arms to the sun before belly-flopping forward to splash Iselle, who ducked and shrieked and splashed her back.
Lamentably, his amazing accomplishment didn't stop the twenty-five or so unlucky trainees crammed into the transport hold from being jostled about pretty badly as the damaged ship, now possessing all the aerodynamic qualities of a flying brick, belly-flopped in the middle of a Midwest corn field.