sit on verb 6sit-on adjective 1forms 3 verb6 •To be a member of (something).He sits on the appropriations committee. •To take no action on (something); to hold (something) in reserve without actually using.I sent the boss my proposal three weeks ago and he's just been sitting on it. •To block, suppress, restrain (something).The chairman sat on the report until the end of the legislative session. •(informal) To restrain (a person).He started to act up, but she sat on him. •To hold an official inquiry regarding (something); to deliberate about (something). •(euphemistic) To insert (something) into one's vagina or anus from below.Let me sit on it. sit-on adjective1 •Designed to be sat on. formssat on · sitting on · sits on
