Synonyms for "flop joints" include seedy bars, rundown clubs, dive bars, and sleazy watering holes. These terms typically refer to establishments that have a seedy or questionable reputation, often attracting a rough crowd. Other synonyms for flop joints might include biker bars or honky-tonks, popular among motorcycle enthusiasts and country music fans, respectively. These types of bars often feature dim lighting, loud music, and cheap beer, creating an atmosphere that some might find appealing, while others might consider it unsafe. Regardless of the terminology used, these types of establishments are generally known for their gritty and sometimes dangerous ambiance.