in case you're interested in a serious answer, Christ "is the English term for the Greek word meaning "the anointed one". In English, we usually use the term Messiah. It means that Jesus Christ was the redeemer of humanity's sins from God's wrath, as prepared by God Himself.
The Messiah was prophesied in the Old Testament hundreds/thousands of years before Jesus' birth. And Jesus fulfilled all those prophesies. For example, you can read Isaiah 53.
Surely he took up our infirmities
and carried our sorrows,
yet we considered him stricken by God,
smitten by him, and afflicted.
5 But he was pierced for our transgressions,
he was crushed for our iniquities;
the punishment that brought us peace was upon him,
and by his wounds we are healed.
6 We all, like sheep, have gone astray,
each of us has turned to his own way;
and the LORD has laid on him
the iniquity of us all.
His first and last name are as follows: Christ Jesus. Christ indicates Son of God. Jesus is just his lowly human name. So, Jesus is Jesus' last name. His first name is Christ.