strapwarming UK /ˈstɹæpˌwɔː.mɪŋ/US /ˈstɹæpˌwoɹ.mɪŋ/ noun1 •(slang) The act or an instance of keeping one's strap-on (sex toy with a dildo) in the other partner's anus, mouth, or vagina, typically for a prolonged period of time, without moving to create friction.