when someone who just meets you thinks that you are their soul mate and they want to spend the rest of their lives with you and have kids with you. usually you dont feel that same about them.
after your first date with someone they are already talking about marriage. thats how you know they instalove you.
by babymomma1 April 6, 2011
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A male or female who thinks they have fallen in love with someone and that person is in love with them just because they got a glance, a smile or some small interaction in the minutest sense
She fell in instalove because he said "hi"!
OMG, OMG he smiled, bought me a drink - I think it is instalove!
by benben11 June 21, 2018
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