{v. phr.} To feel comfortable; act as if you were in your own home. * /If you get to my house before I do, help yourself to a drink and make yourself at home./ * /John was an outdoor man and could make himself at home in the woods at night./ Compare: AT EASE, AT HOME(2).
MAKE ONESELF AT HOME
Meaning of MAKE ONESELF AT HOME in English
Slang English vocab. Английский сленговый словарь. 2012