This summer, there’s one homophonous mix-up I’m really enjoying for the images it inspires: pedal boat, peddle boat, and petal boat.
Below I share my definition of each variation for your pleasure (and perhaps to help clear up some confusion):
1) Pedal Boat (also called a pedalo or a paddle boat): A boat one moves—mostly through a scum of the excrement of waterfowl—by powering a paddle wheel through of the pedaling action of one’s feet.
2) Peddle Boat: A boat from which one sells one’s wares, perhaps crustless sandwiches, fizzy drinks, or other refreshments to those who’ve overexerted themselves in their pedal/paddle boats.
3) Petal Boat: A boat made of water flowers and used only by ants or small mice to traverse the scummy pond and recover the remains of the peddle boat refreshments dropped by the pedal boat travelers.

What language mix-ups do you find delightful in spite of yourself? Do you, too, enjoy making up definitions? List them or link them in the comments.