Spitball rhymes with:
basketball, fastball, football, meatball, racquetball, softball, arenaball, basketball, blackball, butterball, cannonball, eyeball, fastball, fireball, football, handball, hardball, meatball, mothball, oddball, pinball, powerball, racquetball, screwball, snowball, softball, spaceball, stickball, tidball, trackball, volleyball
Spitball sounds like:
softball, spiteful, susceptible