Top Definition
A person, typically from the opposite sex, who has taken a keen attraction and obsession with you or another person based on subsequently little or hight amounts of social contact.
Often in most cases it is a female who has taken a serious obsession with a male and has reached the pinnical of the annoyance levels and usually wants to spend all her time with the male.
As in the movie Wedding Crashers, after Jeremy has sex with that red head, he refers to her a a level 5 cling-on.
by long daddy 5 June 08, 2007
5 Words related to Level 5 cling-on

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