to waste or kill time; evade work or responsibility (often fol. by off or around): Exam week is not a time to goof off. We goofed around till train time.
—v.t.
to spoil or make a mess of (something); botch; bungle (often fol. by up): You really goofed up the job.
to tease, ridicule, or mock; make fun of.
—n.
a foolish or stupid person.
a mistake or blunder, esp. one due to carelessness.
a source of fun or cause for amusement: We short-sheeted his bunk just for a goof.