sheep are some of the dumbest animals on the planet and will follow one another off a cliff.
buffalo are just fat and a tad bit ugly. they also aren't very smart and start running around wildly when ever anything happens.
therefore a sheepalo is some who always follows the trend. he/she is one of those mindless drones of society/ highschool life who always follows everyone else. fat, ugly, and absolutely retarted.
a sheepalo is like someone who starts collecting all the new trading card games (pokemon, yugioh, etc) and then denies it but 10x worse
she spent $600 dollars on hollister after that one cheerleader wore one of those shirts