There’s always crazy stuff going on in bathrooms at house parties. And once seen, it can’t be unseen

In London, “SW” stands for “South West”. It’s a way of distinguishing parts of the city (NW, SE, etc)

London is known for having lots of air traffic. The stripes are “Contrails” (http://en.wikipedia.org/wiki/Contrail)

It’s far into summer

In South Africa, sandals are called flip flops. In Australia they are called thongs. So at first it sounds like the “thongs” reference is to shoes, but it’s actually to underwear, because it is clarified by “flip flops”

2 Party tricks. Edward Cider Hands (http://www.urbandictionary.com/define.php?term=edward%20ciderhands) and the Wizard Stick (http://en.wikipedia.org/wiki/Wizard_Staff)

In England you can buy alcohol from “corner stores” which are small goods shops

‘Baggage’ is meant in 2 senses here; both luggage and emotional drama

Annesley House is made up of a lot of people, mostly Australians and South Africans. Australians cook outside over a barbecue while South Africans call it a “braai” (http://en.wikipedia.org/wiki/Braai)

From Annesley House, if you look directly North you can see the London Eye in the distance (http://www.londoneye.com)