I wasn't born yesterday.

What does “I wasn't born yesterday” mean?

I'm not naive; you can't fool me that easily.

• Talk is cheap./tɔːk ɪz tʃiːp/
• I got your back./aɪ ɡɑːt jʊr bæk/
• Talk to the hand./tɔːk tuː ðə hænd/
• No money, no honey./noʊ ˈmʌni noʊ ˈhʌni/
• Wish me luck./wɪʃ mi lʌk/
• Live long and prosper./lɪv lɔːŋ ənd ˈprɑːspər/
• You are the best./ju ɑːr ðə best/
• You deserve better./ju dɪˈzɜːrv ˈbetər/