This phrase is a humorous way of describing the act of completely emptying the bladder through urination. روشی طنز آمیز برای توصیف عمل تخلیه کامل مثانه از طریق ادرار.
مثال؛
I need to find a bathroom and drain the main vein.
... [مشاهده متن کامل]
During a conversation about bathroom breaks, a person might comment, “I always feel relieved after draining the main vein. ”
After holding it in for a while, someone might exclaim, “I can’t wait to find a restroom and drain the main vein!”
