The initial idioms of the letter R

rambo	ramboize
rammy	ramp up
rampage	run rampant
ramrod	run about
run amuck	run (a)round in circles
run down the clock	run for the hills
run foul of (someone or something)	run hot and cold
run (someone) off his or her feet	run off smell of an oily rag
run on empty	run on fumes
run on the smell of an oily rag	run (one's) own show
run out of town	run roughshod over (someone or something)
run a temperature	run the clock down
run wild	run with scissors
ranch	balum rancum
random	randy