Table Mabel is an alternate universe version of Mabel Pines, who was trapped in Dimension MAB-3L. She helped in defeating Anti-Mabel and then returned to her home dimension.
Getting trapped[]
"Unfortunately, we're trapped here forever." -Explainbel
Table Mabel was trapped in Mab-3L sometime before the main universe Mabel was trapped as well. She was given the nickname "Table Mabel."
Defeating Anti-Mabel[]
"MABEL FIIIIIIGHT!" -Table Mabel
Table Mabel helped in defeating Anti-Mabel and returning all the Mabels to their rightful dimensions. She was at one point captured by Anti-Mabel, but managed to get free.