Rolling in the aisles
Definition 1 of 1
Pro Tip 1/3Metaphorical use
This phrase is not literal; nobody is really rolling around the floor of aisles. It's used to describe extreme laughter. 
After the prank, my friends were rolling in the aisles.
Pro Tip 2/3Comedic context
Usually refers to humor in a setting like a comedy show or humorous play where people sit in aisles. 
The play was a hit, with the guests rolling in the aisles.
Pro Tip 3/3Exaggeration
It's an exaggeration to emphasize that something is extremely funny, not just mildly amusing. 
His storytelling had the whole room rolling in the aisles.