Sentence:  Then there came a reg'lar terror of a sou'wester same as you don't get one summer in a thousand, and blowed the shanty flat and ripped about half of the weir poles out of the sand. We spent consider'ble money getting 'em reset, and then a swordfish <WSD>got into</WSD> the pound and tore the nets all to slathers, right in the middle of the squiteague season. 
Meaning of the word marked with <WSD> tags:  To move into (an object), such that one ends up inside it.