The bulk update request #8461 is pending approval.

create implication brown_anus (1591) -> anus (598212)
create implication grey_anus (923) -> anus (598212)
create implication two_tone_anus (108) -> multicolored_anus (82)
create implication multicolored_anus (82) -> anus (598212)

Reason: Was very surprised to find out these were missing.