1. A day when one's hair seems unmanageable; often then developing into a day when everything seems to go wrong, and one becomes increasingly irritable

Derived forms: bad hair days

• horseleech
• horseless
• horseless carriage
• horseman
• horsemanship
• horsemeat
• horsemint
• horseplay
• horsepond
• horsepower
• horsepower-hour
• horseradish
• horseradish peroxidase
• horseradish root
• horseradish sauce
• horses for courses
• horseshit
• horseshoe
• horseshoe arch
• horseshoe bat
• horseshoe crab
• Horseshoe Falls
• horseshoe vetch
• horseshoe whipsnake
• horseshoer