I've heard it somehow that some of USAF controllers say this. is the phrase used in real ATC? if it is, is there any other similar phrases?
More standard English, at least in the U.S., would be "make one small turn", but I've never heard such a term used. Also, "small" doesn't explicitly define how much of a turn, and it doesn't indicate the direction of the turn. ATC instructions are usually precise, something like, "turn right 90 degrees for identification." I remember getting that type of instruction from controllers in setting me up for practice PAR approaches (civilian equivalent of GCA) at Kingsley Field, Klamath Falls, Oregon, U.S.A back in 1969. However, in the next 30 years of flying I never heard a like instruction, at least that I remember, for the simple reason that I never had to fly a PAR approach for real.
The abbreviations are: PAR - Precision Approach Radar GCA - Ground Controlled Approach