Well a manly drink would be beer as epitomised by Homer Simpson.
As for Guinness I am a complete sissy and it's my drink of choice; as for the real ale drinkers they all tend to be chin stroker extraodinaires; and lager drinkers aren't men, they are lads.
So, what remains?
Bottled beers ... I think not!
Gentlemen, manly men and ladies, there can be only one.
Carlsberg Special Brew.