nirṛtir guda ucyate

asuri-called Asuri; medhram-the genital; arvak-of the fools and rascals; dvah-gate; vyavayah-performing sexual affairs; graminam-of common men; ratih-attraction; upasthah-the faculty of procreation; durmadah-Durmada; proktah-is called; nirrtih-Nirrti; gudah-rectum; ucyate-is called.