briar-patch (English, noun)
expansion: briar-patch (plural briar-patches)
Senses:
glosses: A dense thicket of thorny plants; ground made impassable by the impenetrable overgrowth of prickly vegetation.
tags: literally
glosses: An intellectual or philosophical issue abounding with seemingly unresolvable problems; a theoretical quandary or impasse.
tags: figuratively
Forms:
form: briar-patches
tags: plural