I'm a sucker for love, you're a sucker for dick
A play on words. A sucker in the sense of being “a sucker for love” is a person who is gullible or easily tricked into something, in Kendrick’s case, the allurement of love. A sucker in the sense of being “a sucker for dick” is a girl who likes to engage in oral sex (“suck dick”). Kendrick falls for the love game easily, and this girl loves to suck dick!
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