Rectal rhymes with:
brechtel, colorectal, prechtl, bechtol, brechtel, colorectal, knechtel, prechtl, projectile, artiodactyl, bachtel, bachtell, bechtol, brechtel, colorectal, ductile, fractal, hachtel, knechtel, macktal, prechtl, projectile
Rectal sounds like:
ragsdale, recital, reichstuhl, reschedule, resdel, resettle, residual, restyle, rhizoidal, riccitelli, rightly, rigidly, rookstool, ruggedly, rustle