pop around (for a visit)
To come somewhere, usually a person's home or residence, for a brief or casual visit. Hey, if you're free this Saturday, why don't you pop around for a visit? I'd love to show you the new truck I bought. You and your girlfriend should pop around sometime. We could grab some dinner or go out for some drinks.
pop around (for a visit)
and pop by (for a visit); pop in (for a visit); pop over (for a visit)to come by [someone's residence] for a visit. You simply must pop around for a visit sometime. I will pop by about noon. I can pop in for only a minute.