Blocky: Hey guys! For a prank, use Firey's ferris wheel stand to dispense water on Gelatin! He'll get ultra soggy, unable to do anything! When recovered, repeat! Isn't that funny? Hahahahahah! {This program was brought you by Blocky's Funny Doings International.}
Clunky, cumbersome, or awkward. Something that's larger than it needs to be is blonky, as is anything that should be smaller and more trim, or that has square edges that should be rounded.