economic incest

Screwing a family member on a financial transaction.

He paid his sister so far below market value on that property that it was economic incest.

by ThorMonster April 7, 2016

phantom incest

when you say you love someone like a brother or sister but still want to fuck them

sometimes i start to feel phantom incest when hanging out with my best friend for multiple hours

by evesdropper April 6, 2017

Spiritual incest

The act of shipping or the existence of a couple that have a sibling relation ship or are adopted siblings

''omg did you read that JayDick fanfiction?''
''No dude! They're like brothers that's spiritual incest!''

by Insert Dorky Nae May 9, 2017

Eskimo Incest

When a sister and a brother fuck the same person

Bro, my sister fucked the same dude I did, that’s Eskimo Incest!!

by V tha boy November 15, 2019

inerasable incentive

when the government gives historical Americans tax breaks that could uproot their tax obligations for a lifetime

The inerasable incentive gave less than a million Americans tax write offs for the rest of their time on earth.

by Coop Dupe November 23, 2019

section incest

When two people in the same section in marching band get into a relationship.

Did you hear that those two trumpets are dating
Dang man that’s some section incest

by martha56 November 29, 2019

Acausal Incest

Acausal incest is, acausal (basically metaphysical), multi-dimensional sexual intercourse between two relatives not simultaneously existing in one reality.

Veronika: i'd fuck my nonexistent brother in the acausal
Dzheyms: that's acausal incest bro

by Sinistrous Rape 333 June 17, 2020