Shouldn't've Edit Meaning

1.

Contraction of 'should not have'.

Knowing the consequences, you shouldn't've done that.

2.

Compound contraction of "should not have". Also see wouldn't've and couldn't've.

You shouldn't've said that, now Grandma's really mad!

See compound, contraction, wouldn't've, couldn't've

3.

A double contraction.

Should Not Have.

Heh, I guess skippy really shouldn't've parked there.

See contraction, grammer, lazy, speech

4.

simply put, should not have

you shouldn't've gotten me that ferrari for my 12th birthday.

See whee, omg, blah, zero, shit