Small stuffed-toy animal. Allegedly a monkey, though more closely resembles a very hairy baby. Has been known to disappear once owner reaches a certain age/maturity level.
Girl: 'Mum, where is HunkusMunkus?'
Mother: 'He went to live on a farm.'
Girl: 'Waaaahh.'
This late 20th century definition is commonly associated with young, virile, handsome, muscular hunks that some older women are always shamelessly throwing themselves at.
The hulkussy is a double-entendre as it popularly refers to She-Hulk's fat, sexy asshole but by inference can also refer to her vagina. This word originated from the memeing of the show She-Hulk: Attorney at Law when the titular character drops low and shakes her dump truck with Megan Thee Stallion in a post-credit scene.
Hulkussy can also be used to refer the original Hulk's asshole but it seldomly used in this context.
I know that my cock will be ground to dust by the hulkussy but it is a temptation that I cannot and will not resist.