Refers to an object that has become obsolete or is hardly used or hasn't been used in a long time. What is "kicking around" is usually an annoyance or something that is often tripped over thus it is "kicked around". Sometimes it may refer to a long lost or unused object that now can be used again. Something that only serves to be getting in the way for the time being.

Literally everyone, ever. Including the writer of this definition.