Top Definition
Someone who becomes devoted to something too easily or gives their heart away quickly. They might be easily upset by things going on around them.
Be good to her; she wears her heart on her sleeve.
by Dana October 03, 2003
2 more definitions
What happens when you pet a tiger.
While camping in the jungle, Betty Sue found Billy Bob with his heart on his sleeve.
by Katie Svensen October 06, 2003
Result of a horrible maiming accident.
All I did was throw a rock at her! Now her heart is on her sleeve! Ewww...
by Teh Commy October 06, 2003

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