like a leech(redirected from like leeches)
like a leech
In or having a parasitic, clinging manner or demeanor. Her younger brother is like a leech, always hanging around us and asking for money.
like a leechpersistently or clingingly present.
This idiom refers to the way in which a leech attaches itself by suction to the person or animal from which it is drawing blood: the parasites are very difficult to remove once they are attached to the skin and feeding.