parleyvoo UK /ˌpɑː.liˈvuː/US /ˌpɑɹ.liˈvu/noun 2verb 1forms 3 noun2 •The French language, especially as understood by an English person.Lynch. Let him alone. He's back from Paris […] Zoe. O go on! Give us some parleyvoo. — 1922 •(no longer used) A French person.We were hardy British tars who had pity on a poor Parley-voo — 1887 verb1 •(humorous, old-fashioned) To speak a foreign language, especially French. formsparleyvooed · parleyvooing · parleyvoos