sans-cu·lotte 
(sănz′ky-lŏt, -k-, säɴ-kü-lôt)
(sănz′ky-lŏt, -k-, säɴ-kü-lôt)n.
1. A radical republican from the urban lower and artisanal classes during the French Revolution.
2. A revolutionary extremist.
[French : sans, without + culotte, breeches.]