Related Clues:

• It's boring to be in one
• You might get in this at work
• Unfast track?
• Unpaved road feature
• Ho-hum routine
• Dead-end job, e.g.
• Going-nowhere groove
• Routine that tires
• Line at a track
• It's hard to get out of one
• Boring place
• Beaten track
• Repetitive routine
• Dirt road depression
• Bad thing to be stuck in