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"House"-hold name: Carmen Electra as herself.
"House"-lights: In giving a lecture on diagnostics, House flashes back to three patients with various leg ailments. The third patient is Carmen Electra playing herself, who supposedly injured her leg while golfing. Except in the end it turns out Carmen Electra was actually House, when he sustained muscle death in his leg. His colleagues (and us viewers) finally find out how he suffered his leg damage that left him with his infamous limp and addiction to pain medication.
Out-"House": Carmen Electra is a famous model/actress who has posed for Playboy and was married to Dennis Rodman for six months.