shell pump

10 LETTERS · STARTS WITH S

shell pump is a valid 10-letter word worth 18 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1H4E1L1L1P3U1M3P3

1 + 4 + 1 + 1 + 1 + 0 + 3 + 1 + 3 + 3 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does shell pump mean?