The Squadette may also be a Lad-ette, but it's not a job requirement.
A Gender Bender plot (especially via a "Freaky Friday" Flip) can often result in a girl with a masculine personality who acts much like a Lad-ette.
content, comprising material made before Disney gave the entire Expanded Universe a Continuity Reboot.
If you want information about the new EU, look here.
Compare and contrast with other tropes about women who look/behave in a traditionally "masculine" way: the Tomboy (she might have been one when young); Bifauxnen (where the girl can effectively pass as a male - though ironically while lacking most of the 'masculine' behaviour of the Ladette); her ancestor, the Pirate Girl; and her great-grandmother, who shares some of her mannerisms and points of view, but retains a more feminine image: The Flapper.
Also compare the Butch Lesbian, with which this trope may or may not overlap.
In turn, a Lad-ette can be utterly shameless in exploiting male sexual interest for her own personal advantage.
Legends stories that do not apply to the Legends continuity timeline.
These stories were often written as parodies or presented "What If?
She likes sports, beer, cars, swearing, fighting and sex in a stereotypically masculine way.
She is crude, rude, often hygienically challenged and cheerfully ignorant and aggressive.