prone out

== English == === Pronunciation === Rhymes: -aʊt === Verb === prone out (third-person singular simple present prones out, present participle proning out, simple past and past participle proned out) (intransitive, surfing) To lie flat on one's board (face down) in order to be propelled shorewards by a broken wave. (transitive, law enforcement) To order or cause a person to lie prone on the ground, usually at gunpoint and to effect a high-risk arrest.