In Japanese, the word Nage means 'to throw' and the word Uke means 'to accept'. The nage is the one who gets to throw the uke, who agrees to be the fall guy. The uke has to accept the basic premise that whoever attacks is already defeated; by attacking they've already lost. You learn more in aikido as an uke rather than as a nage, because you learn to accept what is going to happen to you with full commitment.
Terry Dobson 1937-1992
It's a lot like dancing... P147