CCl2 is an electrophile.
An electrophile is a chemical species that has an affinity for electrons. These species tend to react by accepting an electron pair that is generally from a nucleophile. They help in the electrophilic reactions and chemical bonds are formed. Some of the examples of electrophiles are: carbocation, electrophilic halogens, acids etc. In the case of :CCl2, the octet of the molecule is not complete and it requires two electrons in order to complete it.