(v.) To vomit and defecate simultaneously, or near-simultaneously, as is often seen with food poisoning. So called because real life battleships often fire guns from both ends or both sides.
After I ate that bad Chinese food, I was battleshipping like a fiend for most of the next day.
by Inox March 15, 2004
The penis of an older man that has weathered many a vaginal seas. They are brought out for various ceremonies throughout the year. Some mens Battleships have more ceremonies than others.
So Bob; are you gonna be sailin the old Battleship this weekend?
by Dr. Battleship DeCock February 28, 2008