נִכמַר הלֵב

Hebrew literary phrase meaning: the heart breaks with mercy; heartfelt compassion; to be deeply touched/heart swells up, with mercy, compassion, sorrow, longing 

Literally: Heart cracks
Source: of the word Ni'Khmar (נכמר) is biblical (Lamentations 5:10- עֹורֵ֙נוּ֙ כְּתַנּ֣וּר נִכְמָ֔רוּ - our skin cracked like an oven)
Usage: used when the heart is poignantly touched by someone/something/story that invokes much heartfelt mercy/compassion/sorrow/longing
Pronounced: Ni'KhMar Ha'Lev

שוקק

Hebrew word for: bustling, teeming, lively 

Source: Biblical

Literally: N/A

Pronounced: Show-keck

למסמס

Hebrew idiom for: procrastinate, use delaying tactics, drag one's feet/heels, take one's time, play for time, play a waiting game, till the opportunity or issue fades away / dissolves / dissipates

Etymology: N/A

Literally: To dissolve / macerate
Pronounced: L'Mas'Mess

להחזיר עטרה ליושנה

Expression meaning: to restore something to its original splendor

Literally: To restore a crown to its older state
Source: The expression appears in the Babylonian Talmud (Yoma, 69), but used commonly as a flowery expression in modern day Hebrew. Often used in Israeli media, by political commentators.
Pronounced: L'Hakzir A'ta'ra L'yosh'Na

קצרו המילים

Idiom for: Words can't describe/express

Literally: Words are too short
Pronounced: katzru ha'milim

אינו בוחל באמצעים

Literally "one who doesn't loath any means" is the Hebrew expression for one who justifies any and all means to an end.
Pronounced: ay'no boe'chel b'em'tza'im

Used often in the context of terrorists groups that use loathsome means to justify their goals: from bombing of innocent civilian; using schools, mosques, hospitals for launching rockets and or caching weapons; other examples include using their own civilians, children, women, and elderly as human shields.

In a lighter context it may be used to describe, politicians, or any greedy group or person who is unashamed of applying any means to achieve their desired goal

חמקמק

Meaning: elusive
Pronounced: cha'mak'mak
From the word לחמוק which means to evade, slip away
Derivatives: חמקן used also for stealth technology e.g., a stealth plane which is
מטוס חמקן

להקיש

to infer
also: to induce, to conclude
Pronounced: L'hakish

קיקיוני

ephemeral
Pronounced: keek-yo-ni

עוד חזון למועד

Meanings and English Parallels:

1. The time has not yet come
2. Premature, as in its premature to come to that conclusion
3. When we reach that bridge/haven't reached that bridge yet

Literally: There'll still be a vision/prophecy for that time
Pronounced: Ode Khazon La'Mo'Ed