a lecherous man is someone who leers at people with the sole thought of sex on his mind. usually dribbles and has manic glints in his eyes. often a pervert.
look at him! the dirty lecherous old git!
by jabberwocky445 September 20, 2006
Lustful: A mam who is involved in sexual activities
The man behind the rape case was lecherous.
by Rocky_delhi May 23, 2007