Wal-Mart Stores Inc. has a lot of apologies to make this Halloween.

The retail giant was under fire Monday for selling Fat Girl Costumes on its website, a section of Halloween costumes meant for plus-sized women.

Thousands of people took to social media to express outrage over the company’s “offensive” labeling.

Within the past 24 hours, more than 7,500 people have tweeted about the inappropriate costume section -- and the complaints keep rolling in, according to Topsy, a social media analytics firm. 

“I cannot believe the ridiculous person/s who decided to name a clothing section 'fat girl costumes.' Not OK!!! @Walmart #NotCool,” one user tweeted.

A Wal-Mart representative agreed that the name of the clothing section was “not OK.”

“It was unacceptable, and we apologize. We quickly removed it and are taking steps to ensure this never happens again,” Wal-Mart responded.

Wal-Mart removed the section of Fat Girl Costumes Monday morning after receiving backlash from thousands of customers.

Men and women come in all shapes and sizes, another customer complained.

"@Walmart Fat shaming is disgusting!!! Don't ever mistake our size for weakness."

“This never should have been on our site. It is unacceptable, and we apologize. We worked quickly to remove this,” Wal-Mart replied.

Wal-Mart may have quickly removed the section from their site, but it doesn’t look like people are going to be quick to forgive and forget about the incident.

The question still remains: Why did this section exist in the first place?