(slang) professional; like a pro

professional (プロフェッショナル) / production (プロダクション) / proletarian (プロレタリア, プロレタリアート) / prostitute (プロスチチュート) / proportion (プロポーション) / program (プログラム) / propaganda (プロパガンダ)

Short for 競技プログラミング (“competitive programming”).

professional athlete

(colloquial) current boyfriend

everything

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

criminal

Kyūjitai form of 犯罪学: criminology