batty boy or batty mannchiefly slang offensive Brit a male homosexual[C20: from Caribbean slang batty bottom, buttocks]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014