I did a search but the results seemed to be about vtec.

My brother was following me yesterday and said at one point when I pulled off (at a normal ish pace), my car blew out a load of smoke, but it only did it the once.

I am a little bit concerned as to whether this is normal or not?

EDIT: Yes Mikey K it was on the way back from Oulton

 

Can be fairly normal. Just spitting out some engine crap.

MB

 

What colour?

If it's light (white/grey/blue), it can be an issue. It'll usually cough some black soot out - as Mark says, it's fairly normal.