on shoulders

on (one's) shoulders

One's own responsibility or obligation. My siblings' care has been on my shoulders ever since our parents died.
See also: on, shoulder
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

*on someone's shoulders

Fig. on someone's own self. (*Typically: be ~; carry something ~; fall ~; have something ~; leave something ~; put something ~.) Why should all the responsibility fall on my shoulders? She carries a tremendous amount of responsibility on her shoulders.
See also: on, shoulder
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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