The only word in the 20-volume historical Oxford English Dictionary that rhymes with orange is sporange, a very rare alternative form of sporangium (a botanical term for a part of a fern or similar plant).

A term used to reference cannabis/marijuana/weed.

In botany, the case or sac in plants in which the spores, which are equivalent to the seeds of flowering plants, are produced or carried. Also sporangium.

A very floppy fish penis

A colloquial term given to sporangium, a saclike structure or cell, the contents of which are converted into an indefinite number of spores. It is borne on a special hypha called a sporangiophore, also known as ass rapeage.

The only known word that rhymes with 'orange'.
The act of hitting someone with a sponge. The more soaked the sponge the better, doesn't matter what the sponge is soaked with.

A rotten orange. (Now there's a word that rhymes with orange.)