The phrase "flimsy side" refers to something that is weak, easily damaged, or not sturdy. It suggests that an object or idea is not solid or reliable. Full definition
Vieira brings muscle to a somewhat flimsy side, as well as his intelligent lateral passing, while the most super of Super Eagles Okocha brings the silky skills that makes 5 - a-side so brilliant. (holdingmidfield.com)
If your plastic egg is a bit on the flimsy side, glue it closed to give it more structure. (fourseasonfamily.com)
It is on the flimsy side and can get in the way. (creditdonkey.com)