Nobody likes a smarty who always points out mistakes instead of offering to help.

Don't be such a smartie during the meeting.

The smarties in our study group always help others understand difficult problems.

The teacher sighed when the smarty pantses in the back started arguing about the answer.

Don't be such a smarty pants during the meeting; your corrections can wait until after we finish.

Don't be such a smarty boots at the meeting; your interruptions aren't helping.

When Jenna corrected the instructor again, he sighed and called her a smartypants.