The exchange between the Doctors: Fifth Doctor: "Does he [the Master] still have that rubbish beard?", Tenth Doctor: "No, no beard this time. Well, a wife," is a pun. A 'beard' is a slang term for the wife of a gay man (who marries to hide his sexuality). The lesbian equivalent (husband) is a 'merkin'. See more
[excited about meeting his past self
Oh there it goes! The frowny face! I remember that one! Mind you, a bit saggier than I ought to be. Hair's a bit greyer. That's 'cause of me, though. Two of us together has shorted out the time differential. Should all snap back into place when we get you home. You'll never close that coat again but never mind that! Look at you! The hat, the coat, the crickety cricket stuff, the stick of celery... yeah. Brave choice, celery. But fair play to you, not a lot ...