aslotAslot Name Meaning. Dutch: metonymic occupational name for a locksmith, from Middle Dutch slo(e)t 'lock, clasp'. Compare Slote 1 and Slott 3.Aslot Name Meaning. Dutch: metonymic occupational name for a locksmith, from Middle Dutch slo(e)t 'lock, clasp'. Compare Slote 1 and Slott 3.