結

Ok, here, you have to think of the phrase "TIE the knot" , which means a wedding (this kanji is used in the marriage compound 結婚 けっこん ). Now, at US weddings, it ends with the couple driving away with cans being dragged behind the car. So here, think of SPIDERMAN, who will TIE the knot with Mary Jane. At his wedding, Spider THREAD attached (or TIED) to SPRAYCANS are being drug behind the limo as they drive off.

Source: Kanji Koohii community