The fifth floor of a shopping centre i.e. Meadowlane in Magherafelt, where young ladies and gentlemen go to kiss and hug and generally be 'romantic.' It is especially popular with lust struck teenagers.
'Hey Ella you going up the town with Joe?'
'Yes, can't wait!'
'You for hitting the fifth floor?' ;)
'Yeeeah that's where we had our first kiss you know.