Canker sore. In some cases, the exact cause of a canker sore is unknown, but trauma or injury to the mouth or oral soft tissues may be the culprit. Other possible causes are food sensitivities, spicy, salty or acidic foods, vitamin B deficiency, hormonal shifts and stress. Cold sore.
What does xoxo mean? Hugs and kisses or xoxo is a term used for expressing affection or good friendship at the end of a written letter, email or SMS text message.
XD is the acronym for the phrase LOL or Laugh Out Loud. It is an emoticon with the letter X as eyes and D as a laughing mouth. The eyes here appear as squinted that denotes the expression of a person while laughing really hard. Usage When a person sends XD then it is an emoticon that denotes laughter. It is used after someone has sent a joke or said something funny. There can be questions regarding what does xd mean but in essence it is simple.