Slimy binding agent. That's what they are getting at.
Job 6:6
(ASV)
Can that which hath no savor be eaten without salt? Or is there any taste in the white of an egg?
(BBE)
Will a man take food which has no taste without salt? or is there any taste in the soft substance of purslain?
(Darby)
Shall that which is insipid be eaten without salt? Is there any taste in the white of an egg?
(KJV+)
Can that which is unsavory
8602
be eaten
398
without
4480, 1097
salt?
4417
or
518
is there
3426
any
taste
2940
in the white
7388
of an egg?
2495
H2495
???????challa^mu^th
khal-law-mooth'
From H2492 (in the sense of insipidity); probably purslain: - egg.
H2492
???cha^lam
khaw-lam'
A primitive root; properly to bind firmly, that is, (by implication) to be (causatively to make) plump; also (through the figurative sense of dumbness) to dream: - (cause to) dream (-er), be in good liking, recover.
PURSLAIN/PURSLANE/MARSHMALLOW
Scroll down to sea purslane. http://cesiak.org/flora.htm From what I read, it is a bitter concoction.
Marshmallow - Althaea Officinalis http://www.diet-and-health.net/articles.php?cont=marshmallow
The whole plant, particularly the root, abounds with a mild mucilage, which is emollient to a much greater degree than the common Mallow. The generic name, Althaea, is derived from the Greek, altho (to cure), from its healing properties. The name of the order, Malvaceae, is derived from the Greek, malake (soft), from the special qualities of the Mallows in softening and healing.