A term for someone who looks at something with no intention of buying it. Predominantly used for people who go to open houses when they have no intention of buying any real estate.

Besides referring to a person who looks at things with no intention of buying them, a special meaning is that of a person who holds up traffic by slowing down to look at an accident or fire or some other reality.

People seen peeking through the gaps between stall doors in public restrooms, especially impatient bathroom trolls and annoying, unsupervised children.

In a sexual with a odd number of participants there are a couple or two couples and one lookie loo