"Peed" is the past tense of the verb "pee." It means to release urine from the body, typically when using the bathroom.
Sentences with «peed»
If your baby is a boy, you can cover his penis with a clean cloth or another diaper so he doesn't pee on himself or you. (babycenter.com)
These are the basic principals for successfully potty training your new puppy to relieve himself only on pee pads. (pethelpful.com)
She's also a master escape artist and loves to run naked off through the house leaving a lovely trail of pee behind her. (happeningsoftheharperhousehold.net)