tdkbatman
TDKBatman
tdkbatman

When I watched this episode, I took it as that Goku is saying that he’s never given a Senzu bean to anyone that way (Future Trunks gives Future Mai a Senzu bean via mouth-to-mouth), and Vegeta misinterprets it as Goku having never kissed Chi-Chi before. It was meant to be a funny misunderstanding between the two