false truffle(noun)

any of various fungi of the family Rhizopogonaceae having subterranean fruiting bodies similar to the truffle

earthball, false truffle, puffball, hard-skinned puffball(noun)

any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles

false truffle(Noun)

Any of various fungi that have underground fruiting bodies which resemble truffles.