The shortened form of the word pectoralis major. Guys who take good care of there body and keep a physically active life style tend to get these. They are located in the area where women have there tits. Namely the chest. Girls like a good looking guy with nice pecs. They are usaually very muscular. They look nice too. Wish i had nice pecs.
Refers to an unwaxed Sergio who walks into a nightclub and has at least four buttons opened on shirt accompanied by at least one gold chain and thick matted chest hair touching his nipples, even though shapely pecs are not a compulsary prerequisite, though lycra shirts are a necissity.
a latino lover aka party pecs comes into the room and states loudly to anyone within earshot "there's a party on my pecs and you're not invited",