“Any marble larger than the majority may be termed a boulder, bonker, cosher, goen, masher, plumper, popper, shooter, thumper, smasher, goom, noogie, taw, bumbo, crock, bumboozer, bowler, tonk, tronk, godfather, tom bowler, fourer, giant, dobber, dobbert, hogger, biggie or toebreaker.”

Marble (toy) - Wikipedia