Here's Bam Margera without a care in the world the day after threatening to smoke crack until he dies ... laughing and arm wrestling while out at lunch.
TMZ obtained this video of Bam having an absolute blast Friday at Teca Restaurant in West Chester, PA. He's also sporting a bunch of new tattoos on his neck, face and legs.
Bam's pretty energetic in the footage ... laughing, smiling, joking and trying like hell to win an arm wrestling match -- using two hands against his opponent's one.