Define Butch I was asked in a Radical Lesbian group so here it is:

My definition of Butch:  Nonfeminine. Resisting femininity...MODERN DAY AMAZON. Us Female proud Butches describe our lives to you, but you refuse to listen. Not all of us are into femme women or exclusively into femmes...some of us prefer other Butches or enjoy BOTH Butch and Femme womyn. But every true Butch IS a Dyke/Lesbian. We do NOT conform, nor ever really have from a young age to hetro feminine roles...period.  We RESISTED..and ALL of us have paid a heavy price FOR resisting!!!

Part two:

Its a Tribe..either you are part of that Tribe or you are not..it is beyond merely feminist....there are signs and signals and Ways of Knowing...and us Butches KNOW and recognize our Tribal Members...there are Initiations and lifelong ways of Being...very akin to Amazon...we take up our space and stand up to men and sometimes compete with them if need be in ways other women do not. Or fear to...like initially breaking into the Construction Trades, before feminine women did so.

We are also used to shame other women into complying because Butch Dyke is about the scariest thing feminine women(especially hetro) can be accussed of, if they refuse to comply, or compete with men for jobs, position or status.
As in "Your a Dyke, Your Mannish, a Virago, Amazon, Shrewish, A Bitch, a Butch, a Lesbian, trying to be a man, ect ect ect and women respond all too often and defensively: " I'm a Feminist but not the ugly Butch manhating, hairy legged, unmade up kind." In other words, just like the L Word Lesbians, sexually pleasing for men to look at it. We are NOT HERE to please men!!!