Definition of middelmannetjie in English:
 middelmannetjie
nounPlural middelmannetjies ˈməd(ə)lˌmanəki
South African A ridge between the wheel ruts of an unsurfaced road.
 the car has a high clearance so is easy to drive on roads with high middelmannetjies
 Example sentencesExamples
-  The middelmannetjie is high enough in some places that we had to choose alternate paths.
 -  Right at the end, a severe axle twister with a high middelmannetjie can only be conquered by vehicles with high ground clearance.
 -  The roads have high middelmannetjies, which tough 4x4s with high ground clearance can handle.
 -  As the grass in the middelmannetjie was almost shoulder high, we stopped every few kilometres to check the vehicles as a precaution against fire.
 -  The front wheel seemed to be stuck on the middelmannetjie with the back wheel changing lanes over it.
 
Origin
  
Afrikaans, literally 'little man in the middle'.