What does cannonballed mean?
Cannonballed is the past tense of cannonball, an informal English verb meaning to jump into water in a tightly curled position — knees drawn to the chest, arms wrapped around the legs — so that the body resembles a round cannonball. The technique is prized not for grace but for impact: hitting the water in this compact, heavy form displaces a maximum amount of water and produces a spectacular splash. The term derives from the noun cannonball, the spherical iron projectile fired by cannons before the modern era, whose shape the diver deliberately imitates. Cannonballing is a staple of pool games, summer camps, and lakeside recreation, especially in American culture, where it is often performed competitively from diving boards or rope swings. It is casual vocabulary with no formal or professional application, carrying connotations of playfulness, exuberance, and childhood summers.
verbPast tense of the verb "cannonball": to dive or plunge into water headfirst, arms wrapped around bent knees in a compact, ball-like shape, typically creating a large splash.
- To have dived into water in a compact ball shape with knees drawn up and arms wrapped around them, producing a big splash.
"The kids took turns cannonballing off the diving board into the pool."
"She cannonballed off the high dive, soaking everyone within ten feet."
"He cannonballed into the lake from the rope swing while his friends cheered."
The word borrows its shape from warfare — the tucked body mimics a cannonball's roundness, which is exactly what makes the splash so enormous.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cannonballed
Cannonball traces back through Middle French to Italian cannone and ultimately canna, meaning a tube or cane — the same root that gives us cannon, canal, and canyon. The noun entered English as the name for the round iron shot fired from early artillery, and by extension the verb borrowed the projectile's distinctive shape as a metaphor for the curled diving posture. The playful swimming sense developed in the twentieth century, particularly in American recreational culture, with cannonballed emerging as its straightforward past-tense inflection alongside the present-participle form cannonballing.
Related word forms
How cannonballed is actually used
Informal and playful in register, used almost exclusively in recreational swimming contexts. Common in American English, especially among children and teens; understood but less culturally prominent in British English.
Easily confused with cannonballed
Cannonball is the noun for a heavy iron projectile or the verb itself, while cannonballed is simply its past-tense form describing an action already performed.