drain the main vein
Verb
Meaning
drain the main vein (third-person singular simple present drains the main vein, present participle draining the main vein, simple past and past participle drained the main vein)
(vulgar slang, of men) To urinate.
Verb
drain the main vein (third-person singular simple present drains the main vein, present participle draining the main vein, simple past and past participle drained the main vein)
(vulgar slang, of men) To urinate.