An "airplane bathroom" refers to the small restroom inside an aircraft where passengers can use the toilet or freshen up during their flight. Full definition
Most important, make a pit stop before boarding to avoid making too many trips to the tiny airplane bathrooms. (babycenter.com)
They weren't the easiest to take off in those small airplane bathrooms, but my legs felt great after traveling for 24 hours straight. (beyogi.com)
Both artists create work that explores isolation: Ulman shoots selfies in airplane bathrooms and five - star hotels; Wolfson's scantily clad robotic dancer at David Zwirner caused a sensation this spring. (tmagazine.blogs.nytimes.com)