1. to extend or stretch something beyond safe or reasonable limits
Usage: present participle of overextend
2. to commit oneself to more activities or obligations than one can handle
Usage: often reflexive
3. to spend or use more money or resources than one can afford
Usage: financial context

Examples

• The company is overextending itself by opening too many new locations at once.
• She’s overextending her arm trying to reach the top shelf.
• The athlete injured himself by overextending his knee during the jump.
• They’re overextending their budget with this expensive renovation.
• The military warned against overextending troops across multiple fronts.
• I’m overextending myself by volunteering for three different committees.
• The rubber band snapped from overextending it too far.