drain the main vein

vulgar slang Of a male, to urinate (where "main vein" is slang for the penis). Will you order us another round of drinks? I'm just going to go drain the main vein real quick.

Common Names:

Name	Pronounced	Usage
Rilla	RIL-ə	English
Anja	AHN-yah (Swedish, Finnish, Croatian, Serbian, German)	Swedish, Norwegian, Danish, Finnish, Slovene, Croatian, Serbian, German, Dutch
Riika	REE:-kah	Finnish
Gaius	GAH-yoos (Ancient Roman), GAH-yuws (Ancient Roman), GIE-əs (English)	Ancient Roman, Biblical Latin, Biblical
Yaroslav	yah-rah-SLAHF (Russian)	Russian, Ukrainian, Medieval Slavic
Rolf	RAWLF (German)	German, Swedish, Norwegian, Danish, English