Don't get your bowels in an uproar!
Do not get so excited! Bill: What have you done to my car? Where's the bumper? The side window is cracked! Bob: Calm down! Don't get your bowels in an uproar!
evacuate one's bowels
Euph. to defecate. After taking a jog around the block, Jill felt the need to evacuate her bowels. I am afraid my little boy is sick. He has not evacuated his bowels for several days.
get one's bowels in an uproar
Sl. to get oneself anxious or excited. (Normally fig.) Cool it! Don't get your bowels in an uproar. Fred's always getting his bowels in an uproar about nothing.