Slice of wankbread: an uncommon though effective insult for example, "Sam you slice of wankbread". Similar to 'wanker' or 'wankstain'. Funny name for a person who is a knob.
"Sam you slice of wankbread" or "what are those slices of wankbreads doing over there" "slice of wankbread"
by Toby W May 19, 2006