The Urethra
Scholars have stated that dreaming of kissing the urethra might signify the birth of a child for those without offspring, or the return of children who are traveling. Conversely, seeing hair on the urethra could indicate a short lifespan or indulgence in corruption. Feeding the urethra may be interpreted as a bad end.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam