Thai term for a
foreigner.
Apparently comes from the era when France used to garrison troops in Thailand. The Thais assumed that all white skinned people where French or "farangais" (the way the Thais pronunce the word "Français"), so all modern day tourists are referred to as farang. The term doesn't seem to be used in a derogatory way, with many restaurant s advertising "farang food" - usually meaning burger and chips or a full english breakfast