Bill Maher Says He’d Masturbate Before Taping ‘Politically Incorrect’ in the ’90s

Bill Maher’s spilling the tea — and, uh, more 😲 — ’cause the comedian just confirmed those wild ’90s rumors that he used to rub one out before filming his show … saying it’s 100% true. On his “Club Random” podcast with Cheryl Hines, Bill…