What is an "experiment"?
a test, trial, or tentative procedure; an act or operation for the purpose of discovering something unknown or of testing a principle, supposition, etc.: a chemical experiment; a teaching experiment; an experiment in living.
the conducting of such operations; experimentation: a product that is the result of long experiment.
Obsolete . experience.
verb (used without object)
to try or test, especially in order to discover or prove something: to experiment with a new procedure.
Yes, you can have an experiment without a hypothesis nor a goal, other than to find out what happens when you do something. Ever try something new? You are experimenting.
You do not need a lab, a white lab coat, a hypothesis nor a goal beyond wanting to discover what happens when I do this.