One verse

Srimad Bhagavatam 4.29.14

4.29.14

आसुरी मेढ्रमर्वाग्द्वार्व्यवायो ग्रामिणां रति: । उपस्थो दुर्मद: प्रोक्तो निऋर्तिर्गुद उच्यते ॥ १४ ॥

asuri medhram arvag-dvar vyavayo graminam ratih upastho durmadah prokto nirrtir 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.

The city called Gramaka, which is approached through the lower gate of Asuri (the genital), is meant for sex, which is very pleasing to common men who are simply fools and rascals. The faculty of procreation is called Durmada, and the rectum is called Nirrti.