swing 1 MOVE FROM A FIXED POINT [intransitive, transitive] to make regular movements forwards and backwards or from one side to another while hanging from a particular point, or to make something do this
Let your arms swing as you walk.
a sign swinging in the wind
He was swinging his bag back and forth.
She swung her legs from side to side.
swing something by something
He marched around, swinging the gun by its handle.
I often see my child standing on the bed with his 2 hands gripping the headboard. He then "swings" from side to side (he moves his body side to side while his 2 hands are fixed to 1 point on the headboard). See the picture
I often think the verb "swing" is used when the feet are hung off a surface. I am not sure if we can use the verb "swing" when the feet are in contact with a surface.
Can we say "He is swinging from the headboard by his arms" to express the action in the picture?