When an article of your clothing gets stuck between your butt cheeks. Separate from a wegdie because the clothing is not going up your butt, it just gets smashed a little between your cheeks. Common with dresses and right when you stand up after sitting for a while.
When you first get out of the water and your bikini bottoms ride up your butt is an example of suck butt
An insult that means precisely what the phrase implies, that the recipient should find a butt, and suck it.
The pronunciation is slower than one normally speaks, with emphasis on 'butt'.
The act of a male dressing up in a tuxedo filled with ranch and putting a vacuum nozzle up a females anus until she screams, “OH DADDY THATS ONE CLASSY ASS BUTT SUCK” as a safe word before her intestines are sucked up by the vacuum.
YO Jason totally classy butt sucked me last night! Daddy’s gonna be mad about all the ranch in his bed tho