To collect a census.
To conduct a census on.
An official count or enumeration of members of a population (not necessarily human), usually residents or citizens in a particular region, often done at regular intervals.
Count, tally.
To lose remembrance of.
To unintentionally not do, neglect.
To unintentionally leave something behind.
To cease remembering.
Euphemism for fuck, screw (a mild oath).