See also: Walls English Pronunciation (Received Pronunciation) IPA(key): /wɔːlz/ (General American) IPA(key): /wɔlz/ (cot–caught merger) IPA(key): /wɑlz/ Audio (US):(file) Rhymes: -ɔːlz Noun walls plural of wall (US, slang) The vagina. Usage notes Unlike most slang terms for the vagina, walls cannot also be used to refer to the vulva. Verb walls third-person singular simple present indicative of wallWikiwand - on Seamless Wikipedia browsing. On steroids.