Related Clues:

• "What, me ___?"
• Slowpoke at the track
• Over-the-hill horse
• Not just nudge
• Be a pest
• Cause of fitful sleep
• Not much of a racehorse
• 'Interest paid on trouble before it falls due,' per W. R. Inge
• Badger, in a way
• Horse unlikely to win a race
• Remind annoyingly
• Keep bothering
• Be a shrew
• Annoy by persistent faultfinding
• 'What, me ___?': Alfred E. Neuman line