whale's tail
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
The distal bifurcation of the left anterior descending coronary artery.
Register: slang
Where it’s used:
Used
American English
Examples
[…] anterior descending coronary artery (i.e. the "mustache," "pitchfork," or "whale's tail"; Fig. 18.6, top); in the circumflex system, the distal bifurcation of the segment with the longest total distance that includes the[…]
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
An alternative expression of the whale tail phenomenon where a thong peeks out above the waistband.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “whale's tail” mean?
The distal bifurcation of the left anterior descending coronary artery.
Is “whale's tail” formal or informal?
whale's tail is generally slang.