Slammer rhymes with:
clamor, flammer, glamor, glamour, klammer, amor, brammer, cammer, clamor, crammer, dammer, enamor, flammer, glamor, glamour, grammar, grammer, hamer, hammar, hammer, hamor, hamre, jammer, kammer, klammer, kramar, krammer, muammar, rammer, scammer, stammer
Slammer sounds like:
saulnier, schellhammer, schleimer, schlemmer, schloemer, schollmeyer, sellmeyer, sellner, selmer, selner, shelhamer, shellhammer, sklenar, slemmer, slimmer, sylmar