Equating something bad to a girl "thing" is misogynistic. Now if Reno was calling it a "sissy girlie" fight to distinguish it from other girl fights which are not "sissy" then maybe he is off the hook. But why didn't he just call it a "sissy" fight?
What if he would have called it a "sissy gay fight"? Is that homophobic?
What if he would have called it a "sissy childish fight"? Is that ageist?