Alex Kingston says Shmeil is short for Ishmael, and says it means his name is God. Ishmael actually means God hears, or listens.
Alex Kingston plays the love interest of the eleventh Doctor on Doctor Who (2005). So when DiNozzo asks about her lover's name and she coyly sidesteps him and keeps it a secret, Doctor Who fans can smile, since she is the only person who knows the Doctor's true name.
Every time Alex Kingston says the word "pond," her loyal fans may be amused. Perhaps that references back to her character on Doctor Who (2005), River Song. "Pond" is greatly significant.
References to "pond" in relation to Alex Kingston's character Miranda Pennebaker (if intentional) are most likely nudges to her character Miranda Pond in Law & Order: Special Victims Unit (1999).