1. The male members of a common moderate-size herring species, widely found throughout North America.
2. The male spouses of barfly-ladies; often, they "hit the pubs" together and "drink pale ale like fish".
Alehusbands are comparatively easy to catch and fairly okay to eat, but they definitely have a more "porky" taste compared to alewives, and so I assume that they must possess at least some "male chauvinist pig" characteristics, just like their human counterparts.
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.