for dear life必死に Obviously we don't want you doing anything with your hands other than holding on for dear life. https://eow.alc.co.jp/search?q=%22for+dear+life%22
whack ワック/take hold of~強くぶつ whack a security guard. 牛耳る、制する https://eow.alc.co.jp/search?q=whack https://eow.alc.co.jp/search?q=take+hold+of
