A general term for a penis of gargantuan size and girth. Officially the super-heavyweight of the phallus world. Legend suggests the name relates to a rural Norfolk man 'Og' who, it was rumoured packed a serious trouser serpent.
1. mammoth, gigantic, colossal; vast; stupendous; bulky. HUGE, ENORMOUS, IMMENSE, TREMENDOUS imply great magnitude
"Wow dude, he just whipped his Og's log out in the urinal and I sucked in comparison"