noun

• (originally Canada, US, slang, derogatory) A person with unlikable or obnoxious qualities and behavior, typically mean, self-centered, or disagreeable.
  "I finally fired him, because he was being a real jerk to his customers, even to some of the staff."
• (US, slang, derogatory) A stupid person; an idiot or fool.
• (weightlifting) A lift in which the weight is taken with a quick motion from shoulder height to a position above the head with arms fully extended and held there for a brief time.
• (slang) Masturbation.

verb

• (intransitive) To make a sudden uncontrolled movement.
  "York came to me first, whilst the groom stood at Ginger's head. He drew my head back and fixed the rein so tight that it was almost intolerable; then he went to Ginger, who was impatiently jerking her head up and down against the bit, as was her way now."
• (transitive) To give a quick, often unpleasant tug or shake.
• (US, slang, vulgar) To masturbate.
• (US, slang, vulgar) To masturbate.
  "This is jerking’s 9/11"

noun

• (Caribbean, Jamaica) A rich, spicy Jamaican marinade.
  "Sunshine ranks high in the island's greates burger debate, while the chicken egg rolls with mango chutney and jerk mayo and fabulous fish tacos elevate pub grub to an art."
• (Caribbean, Jamaica) Meat (or sometimes vegetables) cured by jerking, in which it is coated in spices and slow-cooked over a fire or grill traditionally composed of green pimento wood positioned over burning coals; charqui.
  "Jerk chicken is a local favorite."