Related Clues:

• Hauls
• Sprints
• Hauls without lifting
• Short races
• Tom, to Samuel F. B. Morse
• A Morse O has three
• Marathons they're not
• Morse morsels
• Pulls from behind
• Goes on and on and on
• Party poopers
• Morse code elements
• Becomes boring
• Goes really slow
• Progresses at a slow, boring pace