set (one's) back up

1. To become angry, hostile, defensive, or irritable. John started setting his back up when his parents brought up the subject of college again.

2. To cause one to become angry, hostile, defensive, or irritable. Election season always sets my dad's back up. Few things set my back up like hearing about a poacher killing an endangered animal.

See also: back, set, up

See also:

put (one's) back up
have (one's) back up
have back up
Irish
get (one's) Irish up
get back up
get someone's back up
get someone's back up, to
get/put somebody's back up
get (one's) back up

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