TAMP
tamp, tamper, tamping bar
(noun) a tool for tamping (e.g., for tamping tobacco into a pipe bowl or a charge into a drill hole etc.)
Source: WordNet® 3.1
Etymology
Verb
tamp (third-person singular simple present tamps, present participle tamping, simple past and past participle tamped)
(blasting) To plug up with clay, earth, dry sand, sod, or other material, as a hole bored in a rock.
To drive in or pack down by frequent gentle strokes
To reduce the intensity of.
Source: Wiktionary
Tamp, v. t. [imp. & p. p. Tamped; p. pr. & vb. n. Tamping.] Etym:
[Cf. F. tamponner to plug or stop. See Tampion.]
1. In blasting, to plug up with clay, earth, dry sand, sod, or other
material, as a hole bored in a rock, in order to prevent the force of
the explosion from being misdirected.
2. To drive in or down by frequent gentle strokes; as, to tamp earth
so as to make a smooth place.
Source: Webster’s Unabridged Dictionary 1913 Edition