sheet lightning

15 LETTERS · STARTS WITH S

sheet lightning is a valid 15-letter word worth 22 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1H4E1E1T1L1I1G2H4T1N1I1N1G2

1 + 4 + 1 + 1 + 1 + 0 + 1 + 1 + 2 + 4 + 1 + 1 + 1 + 1 + 2 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does sheet lightning mean?