The singer insists he and his older sibling never spent any time together when they toured as Oasis and insists the guitarist could have been doing anything in his dressing room after concerts.
He said: "This is the whole myth, me and him never really spent any time with each other. He did the soundcheck, I walked onstage, had it, went backstage, had a drink. He'd go to his room. F**k knows what he'd get up to in there, probably putting women's clothes on."
Oasis imploded after a fight between the Two Brothers before a concert in Paris in August 2009, and Liam believes the split was inevitable because Noel had decided he wanted out.
Liam added to Uncut magazine: "I've heard his f***ing new record 'cos I f***ing sung on half of it. When I was In America for 'Dig Out Your Soul' he swiped some off because he obviously knew he wanted to do a solo album. So he can talk all the bulls**t about, 'Oh, I was intimidated,' and all that. F***ing nonsense. Behave. He knows. The people know. And I know."