blow a fuse

VERB
11 LETTERS · STARTS WITH B

blow a fuse is a valid 11-letter word worth 17 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3L1O1W4A1F4U1S1E1
3 + 1 + 1 + 4 + 0 + 1 + 0 + 4 + 1 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does blow a fuse mean?