soixante-neuf noun 1verb 1forms 3 noun1 •Sixty-nine (a sex position).When he wanted to bury his face in my crotch, or do soixante-neuf, I laughed. He was offended. — 2017 verb1 •(slang, rare) To sixty-nine (a sex position). formssoixante-neufed · soixante-neufing · soixante-neufs
