Just a few:
When you overhear your husbands friend ask him, "Aren't you worried that if she gets any bigger she might hurt you in a fight some day?"
When your kids are overheard saying, "Yeah!? Well, my mom OR my dad can kick your dads butt!!!!"
While you are reading the newspaper the kids bring you a jar asking, "Can you open this for dad?"
When you start using your critical female eye to estimate BF percentages of others you see in the mall.
When four out of five telemarketers start with, "Good evening SIR!" and the fifth asked for the "lady of the house."
All your friends say, "Do you have a cold? You sound hoarse!"
You have to buy all pants at least two sizes big and then take them to a seamstress to be cut down in the butt and waist to fit.
The only fitted clingy blouses that fit are knit, spandex, or custom made.
When you grimly walk up to the car window of the zit-faced, smart-butt, teenage boy that just flipped you off in traffic, and all he can say is, "Oh SHIT!!! We're gonna get killed!!!"
When you pick up all six grocery bags, one containing a 22lb frozen turkey, from the checkout line with one hand. Then leave the wide-eyed, open-mouthed bagboy holding an empty cart staring at your butt as you saunter out the door.
When you correct the misinformation being traded in the gym by two guys that were talking about steroids and protein synthesis.
When you can convert standard plate sizes into Kg without having to think twice.
When you check carbohydrate and protein content of food labels before the calories and fats.