Two-factor authentication. When elements representing two factors are required for authentication, the term two-factor authentication is applied â e.g. a bankcard (something the user has) and a PIN (something the user knows).
A body rub is a combination of pressures, tensions, motions and vibrations, performed manually or with mechanical devices. The various oils, lotions and liniments used during a massage are also referred to as body rub. These include grape seed or coconut oil, nut oils and mustard oil.
But as it gets warmer - and we start to perspire - the tops of our thighs can stick together. The resulting friction causes what's colloquially known as 'chub rub'. It may sound amusing, but anyone who's suffered the stinging, burning, bright-red rash that makes it painful to walk will tell you it's anything but.