ingrown hair - pêlo encravado
catch up on - se informar, se atualizar
knock up - engravidar uma mulher

'I find it much more fulfilling pulling ingrown hairs out of my chest than catching up on American affairs.'
'And as we all know, once an African leaves his country for the first time, his first goal is to knock up the first white lady he sees. Being Nigerian myself, I've been a witness to this.'

http://www.hiphopdx.com/blogs/meka/2007/04/10/barack-vs-hilary-an-inside-look-at-2008-s-democratic-nominees-.html