thumper
n.— «They key to shooting any powerful gun, and especially a thumper, is to roll with it, not fight it.» —“Re: HARD KICKING 45-70’s & 444 Marlins” by Ken Marsh (kmarsh@charm.net) Usenet: rec.guns June 16, 1996. (source: Double-Tongued Dictionary)
Further reading
Twice a day the River Thames recedes, revealing a muddy shoreline. Hobbyists known as mudlarks stroll the surface searching for objects that have found their way into the river over the centuries, everything from ancient Roman jewelry to modern...
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...