boil oververb

• 1

  To boil to such an extent as to overflow its container.

  • I forgot about the rice and it boiled over.
• 2

  To reach the point where aggressive action is taken.

  • He b'iled right over, and the tongue-lashing he give that boss Right Liver beat anything I ever listened to. There was heap of Scriptur' language in it, and more brimstone than you'd find in a match factory.
  • But as the half progressed, Liverpool's pressure and high-tempo passing game increased United's frustration and it threatened to boil over on the stroke of half-time when Van Persie, who had already been booked, was involved in angry verbal exchanges with several Liverpool players, particularly Gerrard.
• 3

  To act aggressively angry.

  • He boiled over all night.
• 4

  To buck aggressively.

  • The stallion boiled over, throwing Robert from her back.