1. a person or thing that jerks or pulls suddenly
2. a person who operates a soda fountain
Usage: dated; informal

Examples

• The jerker pulled the rope with quick, sharp movements.
• He worked as a jerker at the old-fashioned ice cream parlor.
• The mechanical jerker moved the lever back and forth.
• In the 1950s, being a soda jerker was a popular summer job for teenagers.
• The jerker behind the counter made the best milkshakes in town.