A small pure-bred dog that one can rent by the hour or by the day in Tokyo and other large Japanese cities for the express purpose of walking them in parks and pick up girls or guys.
Japanfreak 1: Wanna go to a cu-ra-bu tonight?
Japanfresk 2: A club? No, I'm tired of clubs.
JF 1: Yellow fever breaking?
JF 2: Maybe.
JF 1: I got an idea. Let's go get some rental dogs and walk em in Ueno Park. That'll score us a couple of J-Girls.
JF 2: Awesome! I don't have to be back at Nova until 5.