Blowtorch rhymes with:
arch, bartsch, batterymarch, cornstarch, demarche, dortch, foertsch, karcz, larch, march, parch, partch, porch, scorch, starch, torch
Blowtorch sounds like:
balderas, baldric, baldrige, balladur's, beladur's, bellwethers, bewilders, bladders, blowdries, blowdryers, blowtorches, boulders, builder's, builders, builders'