I'm not a left-winger myself (I'm a slightly left-leaning liberal, abolish the senate and use the money we save to put air hockey tables in all our high schools)

Here are some starters:

What percentage of women are feminists?

Answer: All of them, some are just less subtle about it. Have you ever met a woman who earnestly believes that she's inferior to men like Pat Buchanan?

Feminism's final terrible revelation: Women are as dumb as men, men are as dumb as women. Neither should be trusted with the neutron bomb.

What do you call a nymphomaniac with a hormonal mutation?