Nickname for Marg Helgenberger of CSI. Given to her by Gary Dourdan at the time of Fergie's "Fergalicious" came out. Marg's fans have come to use the nickname to describe anything pertaining to Marg (or otherwise) as lovely, sexy, sweet, gorgeous, smart, funny, witty, sassy, adorable, eye candy, perfect, etc.
Did you see last night's CSI? It was so Margalicious!
Name of Actress Marg Helgenberger. Her full name is Mary Marg Helgenberger. Her credits include KC on China beach, Dr. Laura Baker in Species I & II, Emma Brooks in Mr. Brooks, Donna Jensen in Erin Brockovitch, Ann Foreman in In Good Company and her most famous as Catherine Willows in CSI
Marg Helgenberger is a fantastic actress