A weak person.
A person put in the front of some business, but who is not really responsible.
One who is financially irresponsible.
A tactic used in debates and arguments where a weaker thesis is substituted for the opponent's real proposition, this thesis then being refuted, thereby creating the illusion of winning the argument against the original proposition.
A weak-willed person.
A soft-bodied invertebrate of the phylum Mollusca, typically with a hard shell of one or more pieces.