==Bullshit== 

 Someone can also be said to be 'chatting shit' or 'talking out of their arse' if they are indeed bullshitting or talking bollocks - in this sense the addressee is believed to be lying or 'making shit up'. The clean version of this would be 'chat egg', something else which is deemed quite smelly. 'I smell shit' or 'I smell bull' are phrases used to unveil a bullshitter, but can be commonly cleaned up to 'can you smell something?' or 'it's starting to smell a bit over here' as a joke between two people that are listening to someone talk out of their arse - usualy bigging themselves up to sound like 'the shit'. Nialligimino 

 ==Shit a Brick== 

 If someone is 'shitting bricks' then they can be scared or nervous or this is also used to mean constipated. Nialligimino