There are a few ASL signs for garbage, but the best sign looks like the form of a trash bag hanging in a frame. Take your non-dominant forearm and lay it out flat to act as a frame, palm facing down, then take your dominant pointer finger while the rest of the hand is in a fist, and form a 'U' shape with it under the "frame", as if forming the outline of a trash bag.
Like puppies, babies often find an unsettling level of fascination with the garbage bin. As they grow older, they will enjoy putting things in the garbage bin instead of rooting around in it. You can use the sign for garbage to tell them to put something in the trash.
This is a really nice sign to teach our toddlers when we are asking them to complete simple tasks as they learn to be helpful.
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I hope you remove the first sign here, that is more commonly used for abortion, or forcefully removing something. I have never seen it used for “trash.” The second, similar to “bag” is much more common.
Thank you for your comment, Elizabeth. We appreciate it and will do the necessary revisions soon.