Plural of beanbag; small soft bags filled with dried beans or pellets, used as toys or for tossing games.
From 'bean' plus 'bag,' a compound noun created in the late 19th/early 20th century as this product became commercially popular for children's play and carnival games.
Beanbags became iconic toys partly because they're so forgiving—you can throw them, sit on them, and they won't break anything. The word itself is a perfect example of simple, descriptive compound naming.
Complete word intelligence in one call. Free tier — 50 lookups/day.