British slang defining the result when one manages to get rid of the entire contents of their rectal passage in one go, without splitting the fecal matter in any place or having to do 'seconds' (where there is more than one log).
"Scott managed to squeeze off a full length on Monday."
by Stuart Fletcher November 01, 2004
2 more definitions
the complete length of the penis inside the anus/vagina. its the absolute fullest length and includes all the penis and even some of the skin around it.
"hakko got the full length from me! ahahaha" - Macho tiger
by Hakko November 21, 2004
hair tried to be worn attractively framing your face, but in reality, it looks like stringy carp hanging off your scalp
"Way to mess up your full-legnths"
by Mac November 01, 2003