The Collaborative International Dictionary of English v.0.48:
Pothouse \Pot"house`\, n. An alehouse. --T. Warton. [1913 Webster]WordNet (r) 3.0 (2006):
pothouse n 1: tavern consisting of a building with a bar and public rooms; often provides light meals [syn: public house, pub, saloon, pothouse, gin mill, taphouse]