all by (one's) lonesome

all by (one's) lonesome

Completely alone. My roommate left town for the weekend, so I'm here all by my lonesome.
See also: all, by, lonesome
Farlex Dictionary of Idioms.

all by one's lonesome

Rur. all alone; by oneself. Mary's folks went out and left her all by her lonesome.
See also: all, by, lonesome
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • all by lonesome
  • lonesome
  • on (one's) lonesome
  • on one's
  • on someone's
  • out of one's
  • (I've) got to go
  • save someone's skin
  • (Have you) been OK?
  • run someone out of town